Top Python Interview Questions and Answers (PDF) for 2022 (2022)

Table of Contents
1) What is Python? What are the benefits of using Python? 2) What is PEP 8? 3) What is pickling and unpickling? 4) How is Python interpreted? 5) How is memory managed in Python? 6) What are the tools that help to find bugs or perform the static analysis? 7) What are Python decorators? 8) What is the difference between list and tuple? 9) How are arguments passed by value or by reference? 10) What is Dict and List comprehensions are? 11) What are built-in type does python provides? 12) Explain namespace in Python 13) What is lambda in Python? 14) Why lambda forms in python do not have statements? 15) Explain pass in Python 16) In Python what are iterators? 17) What is the unittest in Python? 18) Explain slicing in Python? 19) What are generators in Python? 20) What is docstring in Python? 21) How can you copy an object in Python? 22) What is negative index in Python? 23) How can you convert a number to a string? 24) What is the difference between xrange and range? 25) What is module and package in Python? 26) What are the rules for local and global variables in Python? 27) How can you share global variables across modules? 28) Explain how can you make a Python Script executable on Unix? 29) Explain how to delete a file in Python? 30) Explain how can you generate random numbers in Python? 31) How can you access a module written in Python from C? 32) What is the use of // operator in Python? 33) Mention five benefits of using Python 34) Mention the use of the split function in Python 35) Explain Flask and its benefits 36) What is the difference between Django, Pyramid, and Flask? 37) What is Flask-WTF and what are their features? 38) Explain what is the common way for the Flask script to work? 39) Explain how you can access sessions in Flask? 40) Is Flask an MVC model, and if yes give an example showing MVC pattern for your application? 41) Explain database connection in Python Flask? 42) If you have multiple Memcache servers, and one of them fails that contain data, will it try to get them? 43) Explain how you can minimize the Memcached server outages in your Python Development? 44) Explain what is Dogpile effect? How can you prevent this effect? 45) Explain how memcached should not be used in your Python project? 46) What is Python If Statement? 47) Explain While loop in Python with example 48) What is enumerate() in Python? 49) How can you use for loop to repeat the same statement over and again? 50) What is Tuple Matching in Python? 51) Explain Dictionary in Python with example 52) How can you copy the entire dictionary to a new dictionary? 53) How can you Update Python Dictionary? 54) Give example of dictionary items() method 55) How can you sort elements in Python dictionary? 56) Give an example of Dictionary len() and Python List cmp() method 57) What are all dictionary methods: 58) Explain Arithmetic operators with example 59) Give example of logical operators 60) Explain membership operators with example 61) Write code to demonstrate operator precedence in Python: 62) Explain arrays in Pythons with example 63) How can you access array elements? 64) How can you insert elements in array? 65) How can you delete elements in array? 66) How can you search and get the index of a value in an array? 67) How can you reverse array in Python? 68) Give example to convert array to Unicode 69) Give an example of a class in Python 70) Explain Inheritance with example 71) Give example of Python constructors 72) How can you access values in string? 73) Explain all string operators with example 74) Give example of sleep() function in Python 75) What is timmer method in Python? 76) Give example of calendar class 77) Explain Python ZIP file with example 78) What are the common examples of exceptions in Python? 79) Explain important Python errors 80) Explain JSON dumps() in Python with example 81) Explain in detail JSON to Python (Decoding) with example 82) Write code for encode() method 83) Write a Python code for array in numpy to create Python Matrix 84) Write a Phyhon code for matrix subtraction 85) Write code for matrix multiplication 86) Explain slicing of matrix with example 87) Write Python code to find average via loop 88) Write a code for list count 89) How can you count duplicate elements in a given list? 90) Write a code to get index of an element in a list using for loop 91) Give an example of Python type() 92) How can you print without a newline in Python? 93) How to print the star(*) pattern without newline and space? FAQs Related content Videos

Here are Python interview questions and answers for fresher as well as experienced candidates to get their dream job.

1) What is Python? What are the benefits of using Python?

Python is a programming language with objects, modules, threads, exceptions, and automatic memory management. The benefits of pythons are that it is simple and easy, portable, extensible, build-in data structure, and it is open-source.

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2) What is PEP 8?

PEP 8 is a coding convention, a set of recommendation, about how to write your Python code more readable.

3) What is pickling and unpickling?

Pickle module accepts any Python object and converts it into a string representation and dumps it into a file by using dump function. This process is called pickling. While the process of retrieving original Python objects from the stored string representation is called unpickling.

4) How is Python interpreted?

Python language is an interpreted language. Python program runs directly from the source code. It converts the source code that is written by the programmer into an intermediate language, which is again translated into machine language that has to be executed.

5) How is memory managed in Python?

Python memory is managed by Python private heap space. All Python objects and data structures are located in a private heap. The programmer does not have an access to this private heap, and the interpreter takes care of this Python private heap.

The allocation of Python heap space for Python objects is done by the Python memory manager. The core API gives access to some tools for the programmer to code.

Python also has an inbuilt garbage collector, which recycles all the unused memory and frees the memory and makes it available to the heap space.

6) What are the tools that help to find bugs or perform the static analysis?

PyChecker is a static analysis tool that detects the bugs in Python source code and warns about the style and complexity of the bug. Pylint is another tool that verifies whether the module meets the coding standard.

7) What are Python decorators?

A Python decorator is a specific change that we make in Python syntax to alter functions easily.

8) What is the difference between list and tuple?

The difference between list and tuple is that list is mutable while tuple is not. Tuple can be hashed, for example., as a key for dictionaries.

9) How are arguments passed by value or by reference?

Everything in Python is an object, and all variables hold references to the objects. The reference values are according to the functions. Therefore, you cannot change the value of the references. However, you can change the objects if it is mutable.

10) What is Dict and List comprehensions are?

They are syntax constructions to ease the creation of a Dictionary or List based on existing iterable.

11) What are built-in type does python provides?

Python provides two built-in types: 1) Mutable and 2) Immutable.

Mutable built-in types are:

  • List
  • Sets
  • Dictionaries
  • Immutable built-in types
  • Strings
  • Tuples
  • Numbers

Immutable built-in types are:

  • Strings
  • Tuples
  • Numbers

12) Explain namespace in Python

In Python, every name introduced has a place where it lives and can be hooked for. This is known as a namespace. It is like a box where a variable name is mapped to the object placed. Whenever the variable is searched out, this box will be searched to get the corresponding object.

13) What is lambda in Python?

It is a single expression anonymous function often used as inline function.

14) Why lambda forms in python do not have statements?

A lambda form in python does not have statements as it is used to make new function object and then return them at runtime.

15) Explain pass in Python

Pass means no-operation Python statement, or in other words, it is a place holder in a compound statement, where there should be a blank left, and nothing has to be written there.

16) In Python what are iterators?

In Python, iterators are used to iterate a group of elements, containers like a list.

17) What is the unittest in Python?

A unit testing framework in Python is known as unittest. It supports sharing of setups, automation testing, shutdown code for tests, aggregation of tests into collections, etc.

18) Explain slicing in Python?

A mechanism to select a range of items from sequence types like list, tuple, strings etc., is known as slicing.

19) What are generators in Python?

The way of implementing iterators are known as generators. It is a normal function except that it yields expression in the function.

20) What is docstring in Python?

A Python documentation string is known as docstring, it is a way of documenting Python functions, modules, and classes.

21) How can you copy an object in Python?

To copy an object in Python, you can try a copy.copy () or copy.deepcopy() for the general case. You cannot copy all objects but most of them.

22) What is negative index in Python?

Python sequences can be index in positive and negative numbers. For positive index, 0 is the first index, 1 is the second index, and so forth. For the negative index, (-1) is the last index, and (-2) is the second last index, and so forth.

23) How can you convert a number to a string?

In order to convert a number into a string, use the inbuilt function str(). If you want a octal or hexadecimal representation, use the inbuilt function oct() or hex().

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24) What is the difference between xrange and range?

Xrange returns the xrange object while range returns the list and uses the same memory and no matter what the range size is.

25) What is module and package in Python?

In Python, module is the way to structure a program. Each Python program file is a module, which imports other modules like objects and attributes.

The folder of Python program is a package of modules. A package can have modules or subfolders.

26) What are the rules for local and global variables in Python?

Here are the rules for local and global variables in Python:

Local variables: If a variable is assigned a new value anywhere within the function’s body, it’s assumed to be local.

Global variables: Those variables that are only referenced inside a function are implicitly global.

27) How can you share global variables across modules?

To share global variables across modules within a single program, create a special module. Import the config module in all modules of your application. The module will be available as a global variable across modules.

28) Explain how can you make a Python Script executable on Unix?

To make a Python Script executable on Unix, you need to do two things,

Script file’s mode must be executable, and the first line must begin with # ( #!/usr/local/bin/python)

29) Explain how to delete a file in Python?

By using a command os.remove (filename) or os.unlink(filename)

30) Explain how can you generate random numbers in Python?

To generate random numbers in Python, you need to import command as

import randomrandom.random()

This returns a random floating-point number in the range [0,1)

31) How can you access a module written in Python from C?

You can access a module written in Python from C by following method,

Module = PyImport_ImportModule("<modulename>");

32) What is the use of // operator in Python?

It is a Floor Divisionoperator, which is used for dividing two operands with the result as a quotient showing only digits before the decimal point. For instance, 10//5 = 2 and 10.0//5.0 = 2.0.

33) Mention five benefits of using Python

Here are the five benefits of using Python:

  • Python comprises of a huge standard library for most Internet platforms like Email, HTML, etc.
  • Python does not require explicit memory management as the interpreter itself allocates the memory to new variables and free them automatically
  • Provide easy readability due to use of square brackets
  • Easy-to-learn for beginners
  • Having the built-in data types saves programming time and effort from declaring variables

34) Mention the use of the split function in Python

The use of the split function in Python is that it breaks a string into shorter strings using the defined separator. It gives a list of all words present in the string.

35) Explain Flask and its benefits

Flask is a web micro framework for Python based on “Werkzeug, Jinja 2 and good intentions” BSD licensed. Werkzeug and jingja are two of its dependencies.

Flask is part of the micro-framework. Which means it will have little to no dependencies on external libraries. It makes the framework light while there is a little dependency to update and less security bugs.

36) What is the difference between Django, Pyramid, and Flask?

Flask is a “microframework” primarily build for a small application with simpler requirements. In a flask, you don’t have to use external libraries. Flask is ready to use.

Pyramids are built for larger applications. It provides flexibility and lets the developer use the right tools for their project. The developer can choose the database, URL structure, templating style, and more. Like Pyramid, Django can also be used for larger applications. It includes an ORM.

37) What is Flask-WTF and what are their features?

Flask-WTF offers simple integration with WTForms. Features include for Flask WTF are:

  • Integration with WTFforms
  • Secure form with CSRF token
  • Global CSRF protection
  • Internationalization integration
  • Recaptcha supporting
  • File upload that works with Flask Uploads

38) Explain what is the common way for the Flask script to work?

The common way for the flask script to work is:

  • Either it should be the import path for your application
  • Or the path to a Python file

39) Explain how you can access sessions in Flask?

A session basically allows you to remember information from one request to another. In a flask, it uses a signed cookie so the user can look at the session contents and modify. The user can modify the session if only it has the secret key Flask.secret_key.

40) Is Flask an MVC model, and if yes give an example showing MVC pattern for your application?

Basically, Flask is a minimalistic framework that behaves same as MVC framework. So MVC is a perfect fit for Flask, and the pattern for MVC we will consider for the following example

from flask import Flask
app = Flask(_name_)@app.route("/")Def hello():return "Hello World"app.run(debug = True)
In this code your, Configuration part will be from flask import Flask
app = Flask(_name_)
View part will be
@app.route("/")Def hello():return "Hello World"

While you model or main part will be
app.run(debug = True)

41) Explain database connection in Python Flask?

Flask supports database-powered applications (RDBS). Such a system requires creating a schema, which requires piping the shema.sql file into a sqlite3 command. So you need to install sqlite3 command in order to create or initiate the database in Flask.

Flask allows to request database in three ways

  • before_request(): It is called before a request and pass no arguments
  • after_request(): It is called after a request and pass the response that will be sent to the client
  • teardown_request(): It is called in a situation when exception is raised, and response is not guaranteed. They are called after the response has been constructed. They are not allowed to modify the request, and their values are ignored.

42) If you have multiple Memcache servers, and one of them fails that contain data, will it try to get them?

The data in the failed server won’t get removed, but there is a provision for auto-failure, which you can configure for multiple nodes. Fail-over can be triggered during any kind of socket or Memcached server level errors and not during normal client errors like adding an existing key, etc.

43) Explain how you can minimize the Memcached server outages in your Python Development?

  • When one instance fails, several of them goes down, this will put a larger load on the database server when lost data is reloaded as the client make a request. To avoid this, if your code has been written to minimize cache stampedes, then it will leave a minimal impact
  • Another way is to bring up an instance of memcached on a new machine using the lost machine’s IP address
  • Code is another option to minimize server outages as it gives you the liberty to change the Memcached server list with minimal work
  • Setting timeout value is another option that some Memcached clients implement for Memcached server outage. When your Memcached server goes down, the client will keep trying to send a request till the time-out limit is reached.

44) Explain what is Dogpile effect? How can you prevent this effect?

Dogpile effect is referred to the event when cache expires, and websites are hit by the multiple requests made by the client at the same time. This effect can be prevented by using a semaphore lock. In this system, when the value expires, the first process acquires the lock and starts generating a new value.

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45) Explain how memcached should not be used in your Python project?

Here are the ways you should not use memcached in your Python project:

  • Memcached common misuse is to use it as a data store and not as a cache
  • Never use Memcached as the only source of the information you need to run your application. Data should always be available through another source as well
  • Memcached is just a key or value store and cannot perform query over the data or iterate over the contents to extract information.
  • Memcached does not offer any form of security either in encryption or authentication.

46) What is Python If Statement?

Python if Statement is used for decision-making operations. It contains a body of code that runs only when the condition given in the if statement is true. If the condition is false, then the optional else statement runs, which contains some code for the else condition.

When you want to justify one condition while the other condition is not true, then you use Python if-else statement.

Python if Statement Syntax:

if expression
Statement
else
Statement

Python if…else Flowchart

Top Python Interview Questions and Answers (PDF) for 2022 (1)

Let’s see an example of Python if else Statement:

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Let’s see an example of Python if else Statement:

def main(): x,y =2,8 if(x < y): st= "x is less than y" print(st) if __name__ == "__main__": main()

47) Explain While loop in Python with example

While loop does the exact same thing what “if statement” does, but instead of running the code block once, they jump back to the point where it began the code and repeat the whole process again.

The syntax of while loop is as follows:

while expression
Statement

The example of while loop is as follows:

x=0#define a while loopwhile(x <4): print(x) x = x+1

48) What is enumerate() in Python?

Enumerate() in Python is a built-in function used for assigning an index to each item of the iterable object. It adds a loop on the iterable objects while keeping track of the current item and returns the object in an enumerable form. This object can be used in a for loop to convert it into a list by using list() method.

Example of enumerate() is as follows:

Suppose we want to do numbering for our month ( Jan, Feb, Marc, ….June), so we declare the variable i that enumerate the numbers while m will print the number of month in list.

#use a for loop over a collectionMonths = ["Jan","Feb","Mar","April","May","June"]for i, m in enumerate (Months): print(i,m) # use the break and continue statements #for x in range (10,20): #if (x == 15): break #if (x % 5 == 0) : continue #print x

49) How can you use for loop to repeat the same statement over and again?

You can use for loop for even repeating the same statement over and again. Here in the example, we have printed out the word “guru99” three times.

Example:

To repeat the same statement a number of times, we have declared the number in variable i (i in 123). So when you run the code as shown below, it prints the statement (guru99) that many times the number declared for our the variable in ( i in 123).

for i in '123': print ("guru99",i,)

50) What is Tuple Matching in Python?

Tuple Matching in Python is a method of grouping the tuples by matching the second element in the tuples. It is achieved by using a dictionary by checking the second element in each tuple in python programming. However, we can make new tuples by taking portions of existing tuples.

Syntax:
Tup = ('Jan','feb','march')

To write an empty tuple, you need to write as two parentheses containing nothing-
tup1 = ();

51) Explain Dictionary in Python with example

A Dictionary in Python is the unordered and changeable collection of data values that holds key-value pairs. Each key-value pair in the dictionary maps the key to its associated value making it more optimized. A Dictionary in python is declared by enclosing a comma-separated list of key-value pairs using curly braces({}). Python Dictionary is classified into two elements: Keys and Values.

Syntax for Python Dictionary:
Dict = { ' Tim': 18, xyz,.. }

Example

Dict = {'Tim': 18,'Charlie':12,'Tiffany':22,'Robert':25} print((Dict['Tiffany']))

52) How can you copy the entire dictionary to a new dictionary?

You can also copy the entire dictionary to a new dictionary. For example, here we have copied our original dictionary to the new dictionary name “Boys” and “Girls”.

Example

Dict = {'Tim': 18,'Charlie':12,'Tiffany':22,'Robert':25} Boys = {'Tim': 18,'Charlie':12,'Robert':25}Girls = {'Tiffany':22} studentX=Boys.copy()studentY=Girls.copy()print(studentX)print(studentY)

53) How can you Update Python Dictionary?

You can update a dictionary by adding a new entry or a key-value pair to an existing entry or by deleting an existing entry. Here in the example, we will add another name, “Sarah” to our existing dictionary.

Example

Dict = {'Tim': 18,'Charlie':12,'Tiffany':22,'Robert':25} Dict.update({"Sarah":9})print(Dict)

54) Give example of dictionary items() method

Dict = {'Tim': 18,'Charlie':12,'Tiffany':22,'Robert':25} print("Students Name: %s" % list(Dict.items()))

55) How can you sort elements in Python dictionary?

In the dictionary, you can easily sort the elements. For example, if we want to print the name of the elements of our dictionary alphabetically, we have to use for loop. It will sort each element of the dictionary accordingly.

Example:

Dict = {'Tim': 18,'Charlie':12,'Tiffany':22,'Robert':25}Boys = {'Tim': 18,'Charlie':12,'Robert':25}Girls = {'Tiffany':22}Students = list(Dict.keys())Students.sort()for S in Students: print(":".join((S,str(Dict[S]))))

56) Give an example of Dictionary len() and Python List cmp() method

Dictionary len() Example:

Dict = {'Tim': 18,'Charlie':12,'Tiffany':22,'Robert':25} print("Length : %d" % len (Dict))

cmp() Example:

Boys = {'Tim': 18,'Charlie':12,'Robert':25}Girls = {'Tiffany':22} print cmp(Girls, Boys)

57) What are all dictionary methods:

Here is the list of dictionary methods:

  • copy()
  • update()
  • items()
  • sort()
  • len()
  • cmp()
  • Str()

58) Explain Arithmetic operators with example

Arithmetic Operators perform various arithmetic calculations like addition, subtraction, multiplication, division, %modulus, exponent, etc. There are various methods for arithmetic calculation in Python, like you can use the eval function, declare variable & calculate, or call functions.

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Example: For arithmetic operators, we will take a simple example of addition where we will add two-digit 4+5=9

x= 4 y= 5print(x + y)

59) Give example of logical operators

Example of logical operators:

a = Trueb = Falseprint(('a and b is',a and b))print(('a or b is',a or b))print(('not a is',not a))

60) Explain membership operators with example

These operators test for membership in a sequence such as lists, strings, or tuples. Two membership operators are used in Python. (in, not in). It gives the result based on the variable present in a specified sequence or string.

Example:

For example here, we check whether the value of x=4 and value of y=8 is available in list or not by using in and not in operators.

x = 4y = 8list = [1, 2, 3, 4, 5 ];if ( x in list ): print("Line 1 - x is available in the given list")else: print("Line 1 - x is not available in the given list")if ( y not in list ): print("Line 2 - y is not available in the given list")else: print("Line 2 - y is available in the given list")

61) Write code to demonstrate operator precedence in Python:

v = 4w = 5x = 8y = 2z = 0z = (v+w) * x / y; print("Value of (v+w) * x/ y is ", z)

62) Explain arrays in Pythons with example

A Python Array is a collection of a common type of data structures having elements with the same data type. It is used to store collections of data. In Python programming, arrays are handled by the “array” module. If you create arrays using the array module, elements of the array must be of the same numeric type.

Syntax to Create an Array in Python

You can declare an array in Python while initializing it using the following syntax.
arrayName = array.array(type code for data type, [array,items])

The following image explains the syntax.

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  1. Identifier: specify a name like usually, you do for variables
  2. Module: Python has a special module for creating array in Python, called “array” – you must import it before using it
  3. Method: the array module has a method for initializing the array. It takes two arguments, type code, and elements.
  4. Type Code: specify the data type using the type codes available (see list below)
  5. Elements: specify the array elements within the square brackets, for example [130,450,103]

Example

import array as myarrayabc = myarray.array('d', [2.5, 4.9, 6.7])

63) How can you access array elements?

You can access any array item by using its index.

The syntax is

arrayName[indexNum]

Example

import arraybalance = array.array('i', [300,200,100])print(balance[1])

64) How can you insert elements in array?

Python array insert operation enables you to insert one or more items into an array at the beginning, end, or any given index of the array. This method expects two arguments index and value.

The syntax is

arrayName.insert(index, value)

Example

Let us add a new value right after the second item of the array. Currently, our balance array has three items: 300, 200, and 100. Consider the second array item with a value of 200 and index 1.

In order to insert the new value right “after” index 1, you need to reference index 2 in your insert method, as shown in the below Python array example:

import arraybalance = array.array('i', [300,200,100])balance.insert(2, 150)print(balance)

65) How can you delete elements in array?

With this operation, you can delete one item from an array by value. This method accepts only one argument, value. After running this method, the array items are re-arranged, and indices are re-assigned.

The syntax is

arrayName.remove(value)

Example

Let’s remove the value of “3” from the array

import array as myarrayfirst = myarray.array('b', [2, 3, 4]) first.remove(3) print(first)

66) How can you search and get the index of a value in an array?

With this operation, you can search for an item in an array based on its value. This method accepts only one argument, value. It is a non-destructive method, which means it does not affect the array values.

The syntax is

arrayName.index(value)

Example

Let’s find the value of “3” in the array. This method returns the index of the searched value.

import array as myarraynumber = myarray.array('b', [2, 3, 4, 5, 6]) print(number.index(3))

67) How can you reverse array in Python?

You can use reverse() to reverse array in Python.

Example:

import array as myarraynumber = myarray.array('b', [1,2, 3]) number.reverse() print(number)

68) Give example to convert array to Unicode

The Example to convert array to Unicode is:

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from array import arrayp = array('u',[u'\u0050',u'\u0059',u'\u0054',u'\u0048',u'\u004F',u'\u004E'])print(p)q = p.tounicode()print(q)

69) Give an example of a class in Python

Example of class in Python

# Example file for working with classesclass myClass(): def method1(self): print("Guru99") def method2(self,someString): print("Software Testing:" + someString) def main(): # exercise the class methods c = myClass () c.method1() c.method2(" Testing is fun") if __name__== "__main__": main() 

70) Explain Inheritance with example

Inheritance is a feature used in object-oriented programming; it refers to defining a new class with less or no modification to an existing class. The new class is called the derived class, and from one which it inherits is called the base. Python supports inheritance; it also supports multiple inheritances. A class can inherit attributes and behavior methods from another class called subclass or heir class.

Example of inheritance:

# Example file for working with classesclass myClass(): def method1(self): print("Guru99") class childClass(myClass): #def method1(self): #myClass.method1(self); #print ("childClass Method1") def method2(self): print("childClass method2") def main(): # exercise the class methods c2 = childClass() c2.method1() #c2.method2()if __name__== "__main__": main()

71) Give example of Python constructors

Example of Python Constructors

class User: name = "" def __init__(self, name): self.name = name def sayHello(self): print("Welcome to Guru99, " + self.name)User1 = User("Alex")User1.sayHello()

72) How can you access values in string?

Python does not support a character type, these are treated as strings of length one, also considered as a substring.

You can use square brackets for slicing along with the index or indices to obtain a substring.

var1 = "Guru99!"var2 = "Software Testing"print ("var1[0]:",var1[0])print ("var2[1:5]:",var2[1:5])

73) Explain all string operators with example

String operators with example:

OperatorDescriptionExample
[]Slice- it gives the letter from the given indexa[1] will give “u” from the word Guru as such ( 0=G, 1=u, 2=r and 3=u)
[ : ]Range slice-it gives the characters from the given rangex [1:3] it will give “ur” from the word Guru. Remember it will not consider 0, which is G, it will consider word after that is ur.
inMembership-returns true if a letter exists in the given stringu is present in word Guru, and hence it will give 1 (True)
not inMembership-returns true if a letter exists is not in the given stringl not present in word Guru and hence it will give 1
r/RRaw string suppresses the actual meaning of escape characters.Print r’\n’ prints \n and print R’/n’ prints \n
% – Used for string format%r – It insert the canonical string representation of the object (i.e., repr(o)) %s- It inserts the presentation string representation of the object (i.e., str(o)) %d- it will format a number for displayThe output of this code will be “guru 99”.
+It concatenates 2 stringsIt concatenates strings and gives the result
*RepeatIt prints the character twice.

74) Give example of sleep() function in Python

Example of sleep() function in Python

import timeprint("Welcome to guru99 Python Tutorials")time.sleep(5)print("This message will be printed after a wait of 5 seconds")

75) What is timmer method in Python?

Timer is a method available with Threading, and it helps to get the same functionality as Python time sleep.

from threading import Timerprint('Code Execution Started')def display(): print('Welcome to Guru99 Tutorials')t = Timer(5, display) t.start()

76) Give example of calendar class

Example of calendar class

import calendar# Create a plain text calendarc = calendar.TextCalendar(calendar.THURSDAY)str = c.formatmonth(2025, 1, 0, 0)print(str)# Create an HTML formatted calendarhc = calendar.HTMLCalendar(calendar.THURSDAY)str = hc.formatmonth(2025, 1)print(str)# loop over the days of a month# zeroes indicate that the day of the week is in a next month or overlapping monthfor i in c.itermonthdays(2025, 4): print(i) # The calendar can give info based on local such a names of days and months (full and abbreviated forms) for name in calendar.month_name: print(name) for day in calendar.day_name: print(day) # calculate days based on a rule: For instance an audit day on the second Monday of every month # Figure out what days that would be for each month, we can use the script as shown here for month in range(1, 13): # It retrieves a list of weeks that represent the month mycal = calendar.monthcalendar(2025, month) # The first MONDAY has to be within the first two weeks week1 = mycal[0] week2 = mycal[1] if week1[calendar.MONDAY] != 0: auditday = week1[calendar.MONDAY] else: # if the first MONDAY isn't in the first week, it must be in the second week auditday = week2[calendar.MONDAY]print("%10s %2d" % (calendar.month_name[month], auditday))

77) Explain Python ZIP file with example

Python allows you to quickly create zip/tar archives.

Following command will zip the entire directory
shutil.make_archive(output_filename, 'zip', dir_name)

Following command gives you control on the files you want to archive

ZipFile.write(filename)

Example of Python ZIP file

import osimport shutilfrom zipfile import ZipFilefrom os import pathfrom shutil import make_archive # Check if file exists if path.exists("guru99.txt"): # get the path to the file in the current directory src = path.realpath("guru99.txt"); # rename the original file os.rename("career.guru99.txt","guru99.txt") # now put things into a ZIP archive root_dir,tail = path.split(src) shutil.make_archive("guru99 archive","zip",root_dir) # more fine-grained control over ZIP files with ZipFile("testguru99.zip", "w") as newzip: newzip.write("guru99.txt") newzip.write("guru99.txt.bak")

78) What are the common examples of exceptions in Python?

The common examples of exceptions in Python are:

  • Division by Zero
  • Accessing a file that does not exist.
  • Addition of two incompatible types
  • Trying to access a nonexistent index of a sequence
  • Removing the table from the disconnected database server.
  • ATM withdrawal of more than the available amount

79) Explain important Python errors

The important Python errors are 1) ArithmeticError, 2) ImportError, and 3) IndexError.

  • ArithmeticError: ArithmeticError act as a base class for all arithmetic exceptions. It is raised for errors in arithmetic operations.
  • ImportError: ImportError is raised when you are trying to import a module which does not present. This kind of exception occurs if you have made a typing mistake in the module name or the module which is not present in the standard path.
  • IndexError: An IndexError is raised when you try to refer a sequence which is out of range.

80) Explain JSON dumps() in Python with example

json.dumps() in Python is a method that converts dictionary objects of Python into JSON string data format. It is useful when the objects are required to be in string format for the operations like parsing, printing, etc.

Example:

import jsonx = { "name": "Ken", "age": 45, "married": True, "children": ("Alice","Bob"), "pets": ['Dog'], "cars": [ {"model": "Audi A1", "mpg": 15.1}, {"model": "Zeep Compass", "mpg": 18.1} ]}# sorting result in asscending order by keys:sorted_string = json.dumps(x, indent=4, sort_keys=True)print(sorted_string)

81) Explain in detail JSON to Python (Decoding) with example

JSON string decoding is done with the help of inbuilt method json.loads() & json.load() of JSON library in Python.

Here translation table show example of JSON objects to Python objects which are helpful to perform decoding in Python of JSON string.

JSONPython
ObjectDict
ArrayList
StringUnicode
number – intNumber – int, long
number – realFloat
TrueTrue
FalseFalse
NullNone

The basic JSON to Python example of decoding with the help of json.loads function:

import json # json library imported# json data stringperson_data = '{ "person": { "name": "Kenn", "sex": "male", "age": 28}}'# Decoding or converting JSON format in dictionary using loads()dict_obj = json.loads(person_data)print(dict_obj)# check type of dict_objprint("Type of dict_obj", type(dict_obj))# get human object detailsprint("Person......", dict_obj.get('person'))

82) Write code for encode() method

Code for encode() method:

# import JSONEncoder class from jsonfrom json.encoder import JSONEncodercolour_dict = { "colour": ["red", "yellow", "green" ]}# directly called encode method of JSONJSONEncoder().encode(colour_dict)

83) Write a Python code for array in numpy to create Python Matrix

Code for array in numpy to create Python Matrix

import numpy as npM1 = np.array([[5, -10, 15], [3, -6, 9], [-4, 8, 12]])print(M1)

84) Write a Phyhon code for matrix subtraction

Phyhon code for matrix subtraction

import numpy as npM1 = np.array([[3, 6, 9], [5, -10, 15], [-7, 14, 21]])M2 = np.array([[9, -18, 27], [11, 22, 33], [13, -26, 39]])M3 = M1 - M2 print(M3)

85) Write code for matrix multiplication

Code for matrix multiplication

import numpy as np

M1 = np.array([[3, 6], [5, -10]])M2 = np.array([[9, -18], [11, 22]])M3 = M1.dot(M2) print(M3)

86) Explain slicing of matrix with example

Slicing will return you the elements from the matrix based on the start /end index given.

The syntax for slicing is:

[start:end]

  • If the start index is not given, it is considered as 0. For example [:5], it means as [0:5].
  • If the end is not passed, it will take as the length of the array.
  • If the start/end has negative values, it will the slicing will be done from the end of the array.

Before we work on slicing on a matrix, let us first understand how to apply slice on a simple array.

import numpy as nparr = np.array([2,4,6,8,10,12,14,16])print(arr[3:6]) # will print the elements from 3 to 5print(arr[:5]) # will print the elements from 0 to 4print(arr[2:]) # will print the elements from 2 to length of the array.print(arr[-5:-1]) # will print from the end i.e. -5 to -2print(arr[:-1]) # will print from end i.e. 0 to -2

87) Write Python code to find average via loop

Here is a code to find average via loop:

def cal_average(num): sum_num = 0 for t in num: sum_num = sum_num + t avg = sum_num / len(num) return avgprint("The average is", cal_average([18,25,3,41,5]))

88) Write a code for list count

Here, is a Code for list count:

list1 = ['red', 'green', 'blue', 'orange', 'green', 'gray', 'green']color_count = list1.count('green')print('The count of color: green is ', color_count)

89) How can you count duplicate elements in a given list?

count duplicate elements in a given list

list1 = [2,3,4,3,10,3,5,6,3]elm_count = list1.count(3)print('The count of element: 3 is ', elm_count)

90) Write a code to get index of an element in a list using for loop

Code to get index of an element in a list using for loop:

my_list = ['Guru', 'Siya', 'Tiya', 'Guru', 'Daksh', 'Riya', 'Guru'] all_indexes = [] for i in range(0, len(my_list)) : if my_list[i] == 'Guru' : all_indexes.append(i)print("Originallist ", my_list)print("Indexes for element Guru : ", all_indexes)

91) Give an example of Python type()

str_list = "Welcome to Guru99"age = 50pi = 3.14c_num = 3j+10my_list = ["A", "B", "C", "D"]my_tuple = ("A", "B", "C", "D")my_dict = {"A":"a", "B":"b", "C":"c", "D":"d"}my_set = {'A', 'B', 'C', 'D'}print("The type is : ",type(str_list))print("The type is : ",type(age))print("The type is : ",type(pi))print("The type is : ",type(c_num))print("The type is : ",type(my_list))print("The type is : ",type(my_tuple))print("The type is : ",type(my_dict))print("The type is : ",type(my_set))

92) How can you print without a newline in Python?

From Python 3+, there is an additional parameter introduced for print() called end=. This parameter takes care of removing the newline that is added by default in print().

(Video) 20 Mostly Asked Python Question | Top 10 Python Coding & 10 Theory Questions Asked During Interview

In the Python 3 print without newline example below, we want the strings to print on the same line in Python. To get that working, just add end=”” inside print() as shown in the example below:

print("Hello World ", end="")print("Welcome to Guru99 Tutorials")

93) How to print the star(*) pattern without newline and space?

Code to print the star(*) pattern without newline and space:

for i in range(0, 20): print('*', end="")

These interview questions will also help in your viva(orals)

FAQs

What is a Python answer? ›

Python is an interpreted, object-oriented, high-level programming language with dynamic semantics.

Is Python easier for interviews? ›

Some languages are just more suited for interviews - higher level languages like Python or Java provide standard library functions and data structures which allow you to translate solution to code more easily. From my experience as an interviewer, most candidates pick Python or Java.

How can I learn Python interview? ›

Do's and Don'ts of Python Developer Job Interview
  1. Have basic knowledge about control flow of python.
  2. Use list comprehension.
  3. Understand the concepts of Object-Oriented Programming.
  4. Know the use of generators.
  5. Practice writing codes on paper or whiteboard.
Mar 23, 2021

What is OOPs in Python? ›

In Python, object-oriented Programming (OOPs) is a programming paradigm that uses objects and classes in programming. It aims to implement real-world entities like inheritance, polymorphisms, encapsulation, etc. in the programming.

Where can I get Python answers? ›

Stack Overflow has many Python questions and answers.

What is data type in Python? ›

Data types are the classification or categorization of knowledge items. It represents the type useful that tells what operations are often performed on specific data. Since everything is an object in Python programming, data types are classes and variables are instances (object) of those classes.

Why tuple is faster than list? ›

Tuples are stored in a single block of memory. Tuples are immutable so, It doesn't require extra space to store new objects. Lists are allocated in two blocks: the fixed one with all the Python object information and a variable-sized block for the data. It is the reason creating a tuple is faster than List.

How do I pass the coding interview? ›

Here are some common mistakes we often make during the coding interview.
  1. Never clarify the question first: ...
  2. Start coding right away! ...
  3. Never analyze the time and space complexity. ...
  4. Never review your code with your own test cases: ...
  5. Be afraid of asking for help. ...
  6. Feel terrible when forgetting a syntax.

How do I practice coding interviews? ›

Here's exactly how you should prepare for your coding interview:
  1. Own the process.
  2. Learn a consistent method.
  3. Refresh on data structures and algorithms.
  4. Practice solving example questions.
  5. Up your coding interview skills.
  6. Use books and courses.
  7. Practice with mock interviews.
Feb 14, 2022

Which is bigger Java or Python? ›

According to the same story, Python is one of the top ten fastest growing languages. Most of the other fast-gainers are new languages, while Python has been around longer than Java.

How do I master Python programming interview? ›

How to Stand Out in a Python Coding Interview
  1. Select the Right Built-In Function for the Job. Iterate With enumerate() Instead of range() ...
  2. Leverage Data Structures Effectively. Store Unique Values With Sets. ...
  3. Take Advantage of Python's Standard Library. ...
  4. Conclusion: Coding Interview Superpowers.

What are the basic concepts of Python? ›

Python is an interpreted, interactive, object-oriented programming language. It incorporates modules, exceptions, dynamic typing, very high level dynamic data types, and classes. Python has packages that encapsulates different categories of functionality in libraries (also called packages).

Can I use Python for coding interview? ›

Before anything else, you need to pick a programming language for your algorithmic coding interview. Most companies will allow you to code in the language of your choice. The only exception I know is Google. They allow their candidates to pick from only Java, C++, Python, Go or JavaScript.

What is array in Python? ›

Array is a container which can hold a fix number of items and these items should be of the same type. Most of the data structures make use of arrays to implement their algorithms. Following are the important terms to understand the concept of Array. Element− Each item stored in an array is called an element.

What is polymorphism in Python? ›

The literal meaning of polymorphism is the condition of occurrence in different forms. Polymorphism is a very important concept in programming. It refers to the use of a single type entity (method, operator or object) to represent different types in different scenarios.

How would you describe a Python project in interview? ›

In a Python interview, select the project that took pride in developing and explain the project with confidence. Start explaining the project with the problem statement. Explain the entire process of how you developed the solution. Also, explain the obstacles you faced in the process and how you solved them.

Where do I ask questions in Python? ›

10 Sites to Solve All Your Programming Related Questions
  • StackOverflow.
  • Quora.
  • Reddit.
  • StackExchange.
  • CodeProject.
  • Google Groups.
  • CodeRanch.
  • Programmers Heaven.
Aug 30, 2021

What is PEP 8 and why is it important? ›

PEP 8, sometimes spelled PEP8 or PEP-8, is a document that provides guidelines and best practices on how to write Python code. It was written in 2001 by Guido van Rossum, Barry Warsaw, and Nick Coghlan. The primary focus of PEP 8 is to improve the readability and consistency of Python code.

What is polymorphism in Python? ›

The literal meaning of polymorphism is the condition of occurrence in different forms. Polymorphism is a very important concept in programming. It refers to the use of a single type entity (method, operator or object) to represent different types in different scenarios.

Where can I get all coding answers? ›

These websites are really good for programmers when they don't know what to do next if an issue is not resolved.
  • StackOverflow. Every programmer is thankful for this website because it has been a savior for them since 2008. ...
  • Reddit. ...
  • Quora. ...
  • StackExchange. ...
  • CodeProject. ...
  • CodeRanch. ...
  • Google Groups. ...
  • Programmers Heaven.
Dec 20, 2019

What are coding solutions? ›

CodingSolutions is a highly competitive job accelerator and talent refinement program that recruits and transitions college graduates with past programming experience or technical degrees into professional careers with Alabama companies and organizations at no cost to the graduates.

This blog features the frequently asked RPA UiPath interview questions and answers in 2022. It helps you prepare to ace your interviews.

Robotic Process Automation Robotic Machines that mimic human actions are called Robots.. RPA (Robotic Process Automation) – A bot programmed to automate a manual business process of executing a task or an activity within a business function.. While UiPath is an RPA tool that is designed to automate any type of existing software process to replace any type of activities that can be performed by a human.. Few of the applications of robotic process automation are as follows:. For each Activity While Activity. This type of activity can be useful to step through all the elements of an array or execute a particular activity multiple times.. This type of activity can be useful to step through all the elements of an array or execute a particular activity multiple times.. Select the Automatic activation Click the Activate Your UiPath license is now activated and you can start creating automation workflows.

This article is a comprehensive guide on the top 50 Blue Prism Interview Questions which will help you ace interviews for RPA Developer.

Since Robotic Process Automation aka RPA cannot be implemented without the RPA Tools, Blue Prism is one of the most popular RPA Tools is used to design automation scripts for various departments and tasks.. So, these variables are used as dynamic variables, to make sure they can be used whenever required across the Blue Prism platform.. Blue Prism comes with various tools, libraries and run time environments to enable the users to automate tasks.. Blue Prism Process Template is used as a base for all the processes created in Blue Prism.. They also help the user understand how the work queues are used in all the processes created.. You can also allocate enough robots to ensure that those robots work with the work queues at peak times, with the expected SLA.. The two main methods of a Blue Prism process getting work from a Workflow System in Blue Prism are as follows:

Crack the Power BI Interview in first Attempt ➔ Real-time Scenario based Questions ✔️Frequently Asked ✔️DAX questions ✔️Curated by Experts ✔️Download Sample Resumes

Power BI Q&A - Natural Language Question and Answering Engine Power BI Desktop - A powerful companion development tool for Power BI.. Power Query to find, edit and load external data Power View for designing interactive and visual reports PowerPivot to analyze data modeling Power Map for displaying insights in 3D Map. Power BI is available in two versions: Power BI Free and Power BI Pro.. Define roles and rules in Power BI Desktop Validate the roles within Power BI Desktop Manage security on your model Validating the role within the Power BI service. Power BIPower QueryPower Pivot Business Intelligence toolImport and shape dataData modeling and calculationsM and DAX languages supportedM language supportedDAX language supportedIncredible visualization optionsEasy to use interfaceHandles millions of rows of data.Simple built-in interactive optionsPowerful tools to import and clean dataModeling tools for efficient data storage and analysisPowerful DAX calculationsAll Excel users can benefit from this toolPowerful DAX calculations going beyond standard Excel Power BI Desktop Power BI Service Power BI Data Gateway Power BI Report Server Power BI Mobile Apps. Dataset ReportDashboard A series of Power Query queries that have been shaped in a DAX model.A series of visualizations, filters, and static elements on a canvas.A way of pulling visualizations together from several reports.A Power BI dataset can have many data sources.Each report can have multiple sheets.A Power BI dashboard is a single page, often called a canvas, that uses visualizations to tell a story.A data set can have one report, and a report can have one data set.The data set and your report are going to have a one-to-one relationship.. Power BI Desktop Power BI Services Power BI Mobile Power BI Gateway Power BI Premium Power BI Report Server Power BI Embedded. Step 1: Import data into the Power BI Desktop report Step 2: connection Step 3: Select the Modeling tab Step 4: Select Manage Roles Step 5: Select Create Step 6: Provide a name for the role Step 7: Select the table that you want to apply a DAX rule Step 8: Enter the DAX expressions Step 9: After creating a DAX expression, select the checkbox placed above the expression and validate the expression Step 10: Select Save. Exam PL-300: Microsoft Power BI Data Analyst Exam DA-100: Analyzing Data with Microsoft Power BI Microsoft Certified: Power BI Data Analyst Associate. Power BI Developer Power BI Analyst Power BI Business Analyst Power BI Data Analyst Power BI Software Engineer Senior Business Intelligence Analyst

Preparing for an Azure interview? Here we bring top 50 Azure interview questions with detailed answers that will help you crack the interview!

So, let’s start with the following basic Azure interview questions and answers and find out more about the type and patterns of interview questions to get ahead towards the Azure learning path .. Answer: When you are asked about Azure cloud interview questions, it should be answered that the Azure resource manager is the infrastructure that is involved in managing deploys or deleting all the resources.. Answer: This is one of the commonly askedSQL Azure interview questions that must be answered by stating that there are two major type of database in SQL Azure;. Answer: This is one of the SQL Azure interview questions that should be answered by stating that the SharePoint 2010 is a diagnostic logging that takes into the data that are a direct indication of the state of the system.. Answer: The answer to this SQL Microsoft Azure interview question for experienced will be MOSS is abbreviated for Microsoft Office SharePoint Server that constitutes a complete version of the portal platform that yields the user to manage, share and even create the document.. In the series of Azure interview questions, here we bring some advanced Azure interview questions for you with the detailed answers.

This blog on R Interview questions and answers for 2022 is a comprehensive guide that will let you ace all of the analytical interviews that you attend.

Data Structures in R Data StructureDescription Vector A vector is a sequence of data elements of the same basic type.. Clustering is the process of making a group of abstract objects into classes of similar objects.. The results of partitioning method are a set of K clusters, each object of data set belonging to one cluster.. K-means is a data mining algorithm which performs clustering of the data samples.. Rattle is a popular GUI for data mining using R . It presents statistical and visual summaries of data, transforms data so that it can be readily modelled, builds both unsupervised and supervised machine learning models from the data, presents the performance of models graphically, and scores new datasets for deployment into production.. It is used to predict the values of the built model.. We can do it either with the help of “paste()” function or “string_c()” function from “stringR” package.. Write a custom function which will replace all the missing values in a vector with the mean of values.. This is the fruits data-set, which consists of two columns:. “dplyr” is a package which provides many functions for data manipulation, one such function is filter().

1) What is Linux? Linux is an operating system based on UNIX and was first introduced by Linus Torvalds. It is based on the Linux Kernel and can run on different hardware platforms manufactured by Int

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PDF included.Following are frequently asked questions in job interviews for freshers as well as experienced accountants. 1) Why did you select accounting as your profession?

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1) What is the difference between the QA and software testing? The role of QA (Quality Assurance) is to monitor the quality of the "process" used to produce the software. While the software testing, i

Once the bug is identified by the tester, it is assigned to the development manager in open status If the bug is a valid defect the development team will fix it.. The test strategy includes an introduction, resource, scope and schedule for test activities, test tools, test priorities, test planning and the types of test that has to be performed.. 19) What is a ‘USE’ case and what does it include?. 27) List out various tools required to support testing during development of the application ?. 32) List out the software quality practices through the software development cycle?. 35) Explain what should your QA documents include?. List the number of defects detected as per severity level Explain each requirement or business function in detail Inspection reports Configurations Test plans and test cases Bug reports User manuals Prepare separate reports for managers and users. 37) What should the Software QA document include?. Software QA document should include. Specifications Designs Business rules Configurations Code changes Test plans Test cases Bug reports User manuals, etc

GCP Google Cloud Platform Interview Questions for Experienced 1. What is Google Cloud Platform? Google Cloud Platform is a set of Computing, Networking,

Google Cloud Platform is a set of Computing, Networking, Storage, Big Data, Machine Learning and Management services provided by Google that runs on the same Cloud infrastructure that Google uses internally for its end-user products, such as Google Search, Gmail, Google Photos and YouTube.. A cloud service provider takes care of the cloud and IT assets of the company that is offering the cloud services.. The platforms that are used for large-scale cloud computing are Amazon Web Services, Azure, Google Cloud Platform, and more.. Google Compute Engine Google Cloud Container Engine Google Cloud Storage Google Cloud App Engine Google Cloud Dataflow Google Cloud Machine Learning Engine Google BigQuery Service Google Cloud Job Discovery Google Cloud Endpoints Google Cloud Test Lab. GCP offers competitive pricing Google Cloud servers allows access to information from anywhere GCP has an overall better performance and service compared to other hosting cloud services Google Cloud provides speedy and efficient server and security updates The security level of Google Cloud Platform is exemplary; the cloud platform and networks are secured and encrypted with various security measures.. Google Cloud Platform Console to perform basic operations on objects and buckets Cloud Storage Client Libraries that provides programming support for various languages GustilCommand-line Tool provides a CLI for the cloud storage. Google Cloud Engine is the basic component of the Google Cloud Platform.. It integrates with other GCP technologies (Google Cloud Storage, Google App Engine, Google BigQuery, etc.). There are different service accounts offered by Google but mainly, users prefer to use Google Cloud Platform Console and Google Compute Engine service accounts.. Google Cloud SDK (Software Development Kit) is a set of tools that are used in the management of applications and resources that are hosted on the Google Cloud Platform.. Google Cloud Platform Console Web UI or Google SDK command line tools can also be used to access the Google Cloud APIs.. Cloud Datastore Cloud Firestore Cloud Bigtable

Looking to prepare for UiPath Interview Questions? Ace your RPA interviews with this list of frequently asked questions and answers for freshers and experienced.

Client-Side and Server Side: The Client-side has UiPath Studio, UiPath Robot, Browser, and UiPath Agent which are the most common client-side applications.. Using UiPath, we can work on repetitive tasks, we can move files from one source to another source, we can also work on various automation such as Web Automation, Email Automation, Excel Automation, PDF Automation, etc.. Data Scraping is only used for extracting structured data.It stores the scrapped information in a data table.It stores the scrapped information in a string.With screen scraping, it is difficult to extract data into Excel or a database.Data scraping can easily export data to excel or a databaseScreen Scraping can collect data by extracting from images and PDF.Whereas Data Scraping cannot extract from images and PDF.. RPA is used to automate processes in the corporate environment without requiring human interaction, while Test Automation is used for testing purposes while automating any application to assess product quality.. Top 50 UiPath Interview Questions and Answers in 2022Top 50 UiPath Interview Questions and Answers in 2022 Here comes Advanced UiPath developer Interview Questions which will be very helpful to crack the interview.

Here is the list of top frequently asked Manual Testing Interview Questions and answers in 2022 for freshers and experienced prepared by 10+ years exp. professionals.

Unit testing Integration testing Regression testing Shakeout testing Smoke testing Functional testing Performance testing. The decision-making ability to analyze when to stop testing Ability to work under time constraints Ability to decide which tests to execute first Testing the entire application using an optimized number of test cases. Unit testing Smoke testing UAT Sanity testing Interface testing Integration testing System testing Regression testing. Functional testing: It is testing the ‘functionality’ of a software or an application under test.. Requirement Analysis Test Planning Test Case Development Environment Setup Test Execution Test Cycle Closure. Exploratory testing is an approach to software testing, wherein testers learn simultaneously about the test design and test execution.

Top {30} Azure Developer Interview Questions and Answers {Updated}- 1. What is Cloud Computing?, What are Microsoft Azure role-based certification exams or paths? What is Azure Storage?

Microsoft Azure is an open and flexible cloud platform that serves as the development, data storing, service hosting, and service management environment.. Microsoft Azure provides developers with on-demand compute and storage to host, scale, and manage web applications on the internet through Microsoft data centers.. Microsoft announced new roles-based Azure certification paths for Administrators, Developers, Solutions Architects and DevOps Engineer who are working with Microsoft Azure Cloud platform.. Azure App Services is the part of PaaS offering from Microsoft Azure.. Azure Databricks facilitate data engineering and data science teams with a simple, quick, and mutual Spark-based platform on Azure.. Autoscaling in Azure is a built-in feature of Mobile Services, Virtual Machine Scale Sets, Cloud Services, and websites that assist applications to perform optimally whenever demand changes.. Azure Fabric provides a service called Azure Fabric Controller.. SQL Azure Federation offers tools that allow developers to share or access databases amongst them in SQL Azure.. Click this link to login to the Azure Portal using Azure credentials: https://portal.azure.com/ Now create an Azure SQL database within the Azure portal.. Azure Advisor service offers information on your whole Azure landscape.. Whether you prepare for Azure administrator certification or azure architect certification , it is better to learn such advanced Azure terminologies.

C PROGRAMMING Interview Questions and Answers pdf free download c language mcqs objective type questions viva lab manual seminar topics online test quiz

1)Small size. 2)Extensive use of function calls. 3)Loose typing — unlike PASCAL. 4)Structured language. 5) Low level (BitWise) programming readily available. 6)Pointer implementation – extensive use of pointers for memory, array, structures and functions.. A C program basically has the following form: 1)Preprocessor Commands. 2)Type definitions. 3)Function prototypes — declare function types and variables passed to function.. The Procedural programming language is also known as the structured programming language is a technique in which large programs are broken down into smaller modules, and each module uses structured code.. Since each header file contains different function definitions and prototype, you would be using only those header files that would contain the functions you will need.. Declaring all header files in every program would only increase the overall file size and load of the program, and is not considered a good programming style.. For example, if you have a program named COMPUTE, typing this on the command line as COMPUTE >DATA can accept input from the user, perform certain computations, then have the output redirected to a file named DATA, instead of sExplain Howing it on the screen.. This is where library files are specified, Explain Which would depend on Explain What functions are to be used in the program.. For example, if you have a program named COMPUTE, typing this on the command line as COMPUTE >DATA can accept input from the user, perform certain computations, then have the output redirected to a file named DATA, instead of sExplain Howing it on the screen.. After the file was opened by the fopen() function, the fseek would require three parameters to work: a file pointer to the file, the number of bytes to search, and the point of origin in the file.

This article on CSS Interview Questions will help you ace your interviews and will set you on the path of becoming a Full Stack Web Developer.

CSS 1 CSS 2 CSS 2.1 CSS 3 CSS 4. Prior to the existence of CSS, elements had to be styled in an in-line fashion or the style were implemented in the head section of an HTML page.. Elements – The same CSS style can be applied to multiple elements to achieve the same style.. Multiple Style One Element – Multiple styles can be applied to a particular HTML element to achieve a unique style.. There are many CSS preprocessors to choose from, however, most CSS preprocessors will add some features that don’t exist in pure CSS, such as mixin, nesting selector, inheritance selector, and so on.. reset.css: reset and normalization styles; minimal color, border, or font-related declarations typography.css: font faces, weights, line heights, sizes, and styles for headings and body text layouts.css: styles that manage page layouts and segments, including grids forms.css: styles for form controls and labels lists.css: list-specific styles tables.css: table-specific styles carousel.css: styles required for carousel components accordion.css: styles for accordion components. The main difference between the two is that mixins output lines of Sass code that will compile directly into CSS styles, while functions return a value that can then become the value for a CSS property or become something that might be passed to another function or mixin.

1) Explain what is Model-View-Controller? MVC is a software architecture pattern for developing web application. It is handled by three objects Model-View-Controller.

To add routes to a webform application, we use MapPageRoute() method of the RouteCollection class, while for adding routes to an MVC application, we use MapRoute() method.. MVC segregates your project into a different segment, and it becomes easy for developers to work on It is easy to edit or change some part of your project that benefits in less development and maintenance cost of the project MVC makes your project more systematic It represents a clear separation between business logic and presentation logic Each MVC object has different responsibilities The development progresses in parallel Easy to manage and maintain All classes and objects are independent of each other. Presentation: It is the visual representation of a specific abstraction within the application Abstraction: It is the business domain functionality within the application Control: It is a component that keeps consistency between the abstraction within the system and their presentation to the user in addition to communicating with other controls within the system. Receive the first request for the application Perform routing Create an MVC request handler Create Controller Execute Controller Invoke action Execute Result. View data: It helps to maintain data when you move from controller to view.. We cannot put common code for a partial view within the viewStart.cshtml.pageView might have markup tags like body, html, head, title, meta etc.Partial view is designed specially to render within the view, and just because of that it does not consist any markupView is not lightweight as compare to Partial ViewWe can pass a regular view to the RenderPartial method In MVC, there are twelve types of results in where “ActionResult” class is the main class while the 11 are their sub-types:. You need to remember that ASP.net MVC is not a replacement for ASP.Net web forms-based applications The approach of MVC app development must be decided based on the application requirements and features provided by ASP.net MVC to suit the specific development needs.. ParametersWeb FormsMVCModelAsp.Net Web Forms follow event-driven development model.Asp.Net MVC uses MVC pattern-based development model.Used SinceBeen around since 2002It was first released in 2009Support for View stateAsp.Net Web Forms supports view state for state management at the client-side..Net MVC doesn’t support view state.URL typeAsp.Net Web Forms has file-based URLs.. It means file name exists in the URLs, and they must exist physically.Asp.Net MVC has route-based URLs that means URLs are redirected to controllers and actions.SyntaxAsp.Net MVC follows Web Forms Syntax.Asp.Net MVC follows the customizable syntax.View typeWeb Forms views are tightly coupled to Code behind(ASPX-CS), i.e., logic.MVC Views and logic are always kept separately.Consistent look and feelsIt has master pages for a consistent look.Asp.Net MVC has layouts for a consistent look.Code ReusabilityWeb Forms offers User controls for code re-usability.Asp.Net MVC offers partial views for code re-usability.Control for HTMLLess control over rendered HTML.Full control over HTMLState managementAutomatic state management of controls.Manual state management.TDD supportWeak or custom TDD required.Encourages and includes TDD!. MVCMVVMA Controller is the entry point to the Application.The View is the entry point to the Application.One to many relationships between Controller & View.One to many relationships between View & View Model.View does not have reference to the ControllerView have references to the View-Model.MVC is Old ModelMVVM is a relatively New Model.Difficult to read, change, to unit test, and reuse this ModelThe debugging process will be complicated when we have complex data bindings.MVC Model component can be tested separately from the userEasy for separate unit testing and code is event-driven.

This Splunk Interview Questions blog covers the top 30 most FAQs in an interview for the role of a Splunk Developer / Architect / Administrator.

Splunk For Machine Data Business Insights Splunk understands the trends, patterns and then gains the operational intelligence from the machine data which in turn help in taking better informed business decisions.. Search & Investigation Machine data is also used to find and fix the problems, correlate events across multiple data sources and implicitly detect patterns across massive sets of data by Splunk.. The data will continue to flow into your Splunk deployment, the Indexers will continue to index the data as usual however, you will get a warning message on top your Search head or web UI saying that you have exceeded the indexing volume and you either need to reduce the amount of data coming in or you need to buy a higher capacity of license.. Easier Searching Of Data: With knowledge objects, you can tag information, create event types and create search constraints right at the start and shorten them so that they are easy to remember, correlate and understand rather than writing long searches queries.. Create Sales Reports: If you have a sales report, then you can easily create the total number of successful purchases, below that you can create a child object containing the list of failed purchases and other views Set Access Levels: If you want a structured view of users and their various access levels, you can use a data model Enable Authentication: If you want structure in the authentication, you can create a model around VPN, root access, admin access, non-root admin access, authentication on various different applications to create a structure around it in a way that normalizes the way you look at data.. So when you look at a data model called authentication, it will not matter to Splunk what the source is, and from a user perspective it becomes extremely simple because as and when new data sources are added or when old one’s are deprecated, you do not have to rewrite all your searches and that is the biggest benefit of using data models and pivots.. However, the Replication Factor in case of Indexer cluster, is the number of copies of data the cluster maintains and in case of a search head cluster, it is the minimum number of copies of each search artifact, the cluster maintains Search head cluster has only a Search Factor whereas an Indexer cluster has both a Search Factor and a Replication Factor Important point to note is that the search factor must be less than or equal to the replication factor. As the name suggests, Search time field extraction refers to the fields extracted while performing searches whereas, fields extracted when the data comes to the indexer are referred to as Index time field extraction.

50 Alteryx Interview Questions and Answers ➔ Real-time Case Study Questions✔️Frequently Asked✔️Curated by Experts✔️Download Sample Resumes

Alteryx is a drive-in data analysis tool that assists in analyzing any volume of data by developing workflows.. The important tool of Alteryx is the Alteryx Designer.. The user who generates the analytic applications through the alteryx designer desktop is known as Data Artisan.. After generating the analytic applications, the data artisan shares them privately or publicly in the Alteryx Analytics Gallery.. An Analytic Application is an Analytic Integration and Pre-Packaged data that we publish in the Alteryx Analytic Gallery through Data Artisans for answering particular tactical analytics questions.. Every Data Artisan of an organization can use the applications, and they can execute and see every application in their Studio.. Private Data relates to the Alteryx Designer Desktop License, and it contains various data sets like demographic data, business lists, consumer lists, and psychographic data.. For running an application, first, we need to press the application name to see the application details and press the “Run” button or press the icon.. According to the application, we have to type the address for geocoding, provide a consumer file for demographic analysis, or choose the data from a variety of selections that are applicable to our business.. To remove the application, first, we press the application name for seeing the details page of that application.. To share the application, first press the application name to see the application details page.. Drag and drop an Input Data Tool into the canvas to access data in Alteryx, then identify the database and select.

1) Mention what is SSRS? SSRS or SQL Server Reporting Services is a server-based reporting platform that gives detailed reporting functionality for a variety of data sources. Reporting services includ

Report Manager Report Designer Browser types supported by reporting services Report Server Report Server and Command line utilities Report Server Database Data Sources. Different data regions include. A set of tool to View, Create and Manage report A report server component that hosts and processes reports in a different formats like PDF, HTML, Excel, CSV, An API, which enables developers to integrate with custom applications or to create custom tools to manage or build reports. The reporting service components in SSRS includes.. Report Designer: It is a place where the report is created or designed Report Server: It provides services for delivery of reports and for implementations Report Manager: A web based administration tool to manage the report server. The main function of a query parameter is to filter data in the data source.. SSRS does allow Cache reports on reporting server.. 17) Explain how you can deploy an SSRS report?. By Report Server: By browsing the report from the disk location of the server you can deploy the report to report server By creating the Utility: Another option is to create customized utility to deploy the report. 20) Explain how would you store your query in an SSRS report or a Database server?

Following are frequently asked SSIS Interview questions for freshers as well as experienced Database managers. 1) What is SSIS? SSIS or SQL Server Integration Services (SSIS) is a component of Microso

The important component in SSIS package are. Control Flow Tasks Database Maintenance Tasks. A package in SSIS is an organized collection of connections like data flow elements, control events, event handlers, parameters, variables, and configurations.. Different types of connection that work within SSIS are. In SSIS, a container is a logical grouping of tasks, and it allows to manage the scope of a task together.. Checkpoint file stores the information about the package execution, if the package run successfully the checkpoint file is deleted or else it will restart from the point of failure.. SQL Server Package Store File System. The account that runs SQL Agent Jobs might not have the required permission for one of the connections in your package.. to the multiple options like a flat file, XML, SQL server table, etc.. Alternatively, you can also import package from SSMS from SQL Server or File System.. Execute SQL helps you to execute a SQL statement against a relational database.. Control flow tab in SSIS includes dataflow task, containers and precedence constraints which helps you to connect containers and functions.

Learn the top 45 RPA interview questions and answers✔️that will help you get prepared for your next interview and grab your next job at one go.

Front office bots – Bots whose deployment is in the user’s control and require human intervention.. These bots work from the same desktop as that of the user.. Hence, RPA bots can be installed on desktops and deployed on servers to access data for repetitive tasks.. These activities enable the robots to:. Master RPA process and RPA design using the advanced UiPath platform with the Robotic Process Automation certification training course .. GUI Dashboard : Offers a visual dashboard with activities like “Send email”, “Display message”, and more Types of Recorders: UiPath studio provides various types of recorders to record actions on multiple platforms Logging and exception handling: Offers various options for debugging and exception handling such as Debug, Open Logs, Slow Step, etc.. UiPath robots run the automated task you create with UiPath studio.. This activity is mostly used when there is no data to process.. Core activities: For all of the automation processes Cognitive activities: For any language translations Terminal activities: For retrieving data from the terminal Web activities: For performing SOAP and HTTP requests to any web APIs Salesforce activities : Makes provisions for automating salesforce activities Testing activities : The package allows you to easily test the systems Python activities : For invoking Python scripts and methods Word activities: For automating activities in MS Word Credential activities : For enabling the addition and deletion of credentials Database activities: For executing queries, transactions, etc.. A chatbot is a bot programmed to chat with a user like a human being, while robotic process automation is a bot programmed to automate a manual business process of executing a task or an activity within a business function.. Robot Controller c. Developer Tools. Process Recorder Process Developers Robot Controller. Robot controller Software robot Developer tools Process recorder

Top 40+ SAP Adobe Forms Interview Questions and Answers from Coding Compiler Will help you to crack your Job interview. Coding Compiler..!

Answer : SAP Smart Forms is used to create and maintain forms for mass printing in SAP Systems.As output medium SAP Smart Forms support a printer, a fax, e-mail, or the Internet (by using the generated XML output).. 1.In the context menu of the package, choose Create -> Form Object -> Form.. 2.Enter the name of the form in the Create Form dialog box.. Smart Forms are printing forms used to print Invoice and purchase order forms etc.. SAP Adobe Forms Save and activate the form.. When presented to the end user, the form retains its original layout, regardless of the amount of data available to fill the form.. Ans: No knowledge or experience is required to learn SAP Adobe forms, but the basic knowledge of SAP adds an advantage to learn adobe forms.. SAP HANA Interview Questions Core Java Interview Questions JSF Interview Questions JSP Interview Questions JPA Interview Questions Spring Framework Interview Questions Spring Boot Interview Questions Core Java Multiple Choice Questions 60 Java MCQ Questions And Answers Aricent Java Interview Questions Accenture Java Interview Questions Advanced Java Interview Questions For 5 8 10 Years Experienced Core Java Interview Questions For Experienced GIT Interview Questions And Answers Network Security Interview Questions CheckPoint Interview Questions Page Object Model Interview Questions Apache Pig Interview Questions Python Interview Questions And Answers Peoplesoft Integration Broker Interview Questions PeopleSoft Application Engine Interview Questions

This blog contains the Top 64 frequently asked PHP Interview Questions and answers in 2022 for freshers & experienced which will help in cracking your PHP interview.

PHP has the ability to generate JavaScript variables, and this can be executed easily in the browser, thereby making it possible to pass variables to PHP using a simple URL.. Next up on these core PHP interview questions, you need to know the difference between an indexed and an associative array.. PHP supports file operations by providing users with a plethora of file-related functions.. This function can open a file or a URL as per requirement.. Being an anonymous function, the lambda function is used to first store data into a variable and then to pass it as arguments for the usage in other methods or functions.. This is used further to store data into a variable, and then you can use it when required without the requirement of defining it again.. Any URL can be connected to PHP easily by making use of the library called cURL.. The script execution time can be increased by: Using the sleep() function in the PHP script Using the set_time_limit() function

Preparing for a SQL Azure job interview? Read these top SQL Azure interview questions and answers and get ready to crack the interview!

So, it becomes important to check out the SQL Azure interview questions if you are preparing for an Azure interview.. Here, you will find some of the top SQL Azure interview questions and answers that will definitely give you the right solution to get the job opportunity as an expert of SQL Azure in the best organizations.. It is the very basic question about SQL Azure database and you may get this question not only among top SQL Azure interview questions but also among the Microsoft Azure interview questions for experienced.. Answer: SQL Azure services will allow you to block the request that will be based on IP address by using the SQL Azure firewall.. Answer: If you are going to face an interview for SQL Azure job, you may find it as one of the best SQL Azure interview questions.. This is one of the most common Microsoft Azure interview questions for experienced candidates who have worked on the SQL Azure database.. Answer: For the management of the SQL Azure database, the SQL server management server 2008 R2 is available.. According to the Microsoft, you will be assisted by SQL Azure Federations for scaling out of the SQL Azure database.. It is possible to use dynamic management views of SQL Azure for the monitoring and management of the SQL Azure database.. You may also have read this question among PaaS interview questions and Microsoft Azure interview questions and answers pdf that covers top questions to crack the Azure interview.. This type of general questions are very common among Azure interview so don’t miss the latest updates of SQL Azure services while preparing for Microsoft Azure interview.

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