Data Science Interview Preparation

Python Data Science Interview Question MCQs- Part 1

 

1. How will you write x to the power y in python?





ANSWER= c)Explain:- ** is used for exponent in python.Exponent - left operand raised to the power of right (e.g. x**y)

 

2. What will be output of 15//4 in python ?





ANSWER= c) // Floor division - division that results into whole number adjusted to the left in the number line Explain:-

 

3. What will be output of 15/4 in python ?





ANSWER= A) Explain:- / Divide left operand by the right one (always results into float)

 

4. What will be output of 15%4 in python ?





ANSWER= C) Explain:- % Modulus - remainder of the division of left operand by the right

 

5. What will be output of below code in python ? Try to answer before running the code snippet.





ANSWER= C) Explain:- SyntaxError, there shouldn’t be a space between + and = in +=.

 

6. What will be output of below code in python ?

L=[1, 0, 3, 0, 'hola', '', [ ]] , list(filter(bool, L))




ANSWER= B) Explain:- Returns a new list containing only those elements of the list L which do not amount to zero.

 

7. Which of the following is not a core data type in Python programming?





ANSWER= D) Explain:- Class is a user-defined data type.

 

8. What is the maximum possible length of an identifier in Python?





ANSWER= D) Explain:- Identifiers can be of any length..

 

10. What will be the output of the following code snippet in python?

x = [[0], [1]] print((' '.join(list(map(str, x))),))




ANSWER= D) Explain:- (element,) is not the same as element. It is a tuple with one item.
 

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