Python Online Quiz

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Following quiz provides Multiple Choice Questions (MCQs) related to Python. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Answer : D

Explanation

The method join() takes list of string as input and returns string as output. It removes ‘,’ and add the given string with join to the list.

Q 2 - What is the output of following code −

[ (a,b) for a in range(3) for b in range(a) ]

A - [ (1,0),(2,1),(3,2)]

B - [ (0,0),(1,1),(2,2)]

C - [(1,0),(2,1),(2,1)]

D - [ (1,0),(2,0),(2,1)]

Answer : D

Explanation

This is nested for loop. The output of first for loop will be the value for the next loop.

Answer : B

Explanation

list are mutable whereas tuples are immutable i.e. in list changes can be made but in tuples it is not possible, they can only be operated its value cannot be changed.

Q 4 - What is output for −

2 * 2 **3

A - 12

B - 64

C - 16

D - 36

Answer : C

Explanation

2**3 gives 2*2*2 i.e. 8, then 2*8 gives 16, since order of precedence is ** then*. ** implies ‘‘ raise to power’’.

Q 5 - What is output of following −

print('any'.encode())

A - ‘any’

B - ‘yan’

C - b’any’

D - x’any’

Answer : C

Explanation

encode() returns bytes object.

Q 6 - Which among them is used to create an object?

A - A class

B - A function

C - A method

D - A constructor

Answer : D

Explanation

constructor is used to create an object of class.

Q 7 - Discuss the outcome of the code?

def func1(n): 
   if(n==0): 
      return 0 
   else: 
      return(n+func1(n-1)) 
def func2(n, result): 
   if(n==0): 
      return(result) 
   else: 
      return(func2(n-1, n+result))  
print(func1(4)) 
print(func2(4,0))

A - Func1 is tail recursion.

B - Func1 and Func2 are tail recursions.

C - Func2 is only tail recursion.

D - Neither Func2 nor Func1 is tail recursion.

Answer : B

Explanation

A function call is said to be tail recursive if there is nothing to do after the function returns except return its value.

Answer : B

Explanation

Checkbutton method is used to make a checkbox. In the parameters we need to pass the values as asked in the question. Here it should bind to v1 thus variable is set to v1 and frame should be under frame1 thus frame1 mentioned in the code.

Answer : B

Q 10 - Which can be an Identifier among them in Python?

A - 1abc

B - $12a

C - _xy1

D - @python

Answer : C

Explanation

Because Identifiers start from letter A to Z or a to z or an underscore (_) followed by more letters or zero or underscores and digits (0 to 9). Python does not allow @ or $ or % within the identifier.

python_questions_answers.htm
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