Python Online Quiz

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

Q 1 - What is the output for −

S = [['him', 'sell'], [90, 28, 43]]

S[0][1][1]

A - 'e'

B - 'i'

C - '90'

D - 'h'

Answer : A

Explanation

List can contain other list values.

So, in this question S[0] gives ['him', 'sell'], S[0][1] gives ‘sell' and S[0][1][1] gives ‘e'.

Remember, the index in python starts with ‘0'.

Q 2 - What is output of following code −

a = (1, 2)
a[0] +=1

A - (1,1,2)

B - 2

C - Type Error

D - Syntax Error

Answer : C

Explanation

TypeError − ‘tuple' object does not support item assignment because a tuple is immutable.

Q 3 - How can we generate random numbers in python using methods?

A - random.uniform ()

B - random.randint()

C - random.random()

D - All of the above

Answer : D

Explanation

To generate random numbers we import random module and in that module we have these methods/functions.

uniform(x,y) returns a floating number in the range [x,y] random() returns a floating point number in the range [0, 1].

randint(x,y) returns a random integer number in the range [x, y].

Q 4 - What is output of following code −

def func(n):
   if(n==1):
      return 1;
   else:
      return(n+func(n-1))
print(func(4))

A - 12

B - 10

C - 9

D - 11

Answer : B

Q 5 - What is the output of the code?

def f():
   global z
   print('z is: ', z)
   z=50
   print('new value of global z is: ', z)

f()
   print('Value of z is: ', z)

A - z is 100

new value of global z is: 100

value of z is 100

B - z is 100

new value of global z is: 100

value of z is 50

C - z is 100

new value of global z is: 50

value of z is 100

D - z is 100

new value of global z is: 50

value of z is 50

Answer : D

Explanation

Here in the above code ‘global' keyword is used to state that ‘z' is global variable. So when we assign a value to z in the function then the new assigned value is reflected whenever we use the value of ‘z' in the main block or outside the function.

Q 6 - Guess the output −

def main(): 
   try: 
      func() 
      print(''print this after function call'') 
   except ZeroDivisionError: 
      print('Divided By Zero! Not Possible! ') 
   except: 
      print('Its an Exception!') 
def func(): 
   print(1/0) 
main()

A - ‘Its an Exception!'

B - ‘Divided By Zero! Not possible!'

C - ‘print this after function call' followed by ‘Divided By Zero! Not Possible!'

D - ‘print this after function call' followed by ‘Its an Exception!'

Answer : B

Explanation

The function ‘func' will not run because it contains an exception. So in try and expect block. The function called under try will not run and will move to except block which defines the type of exception present in the function ‘func'. Thus block of statements present in except ZeroDivisionError is printed.

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 : D

Explanation

You need to define the format in which you want to open the file. Proper path has to be declared by the user for the interpreter to reach the destination of the file.

Answer : D

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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