Question 1

What does the count() data aggregate function do?

Options :

A : Sorts the dataset in ascending order

B : Returns the length of the dataset

C : Calculates the sum of all elements in a dataset

D : Finds the frequency of a specific value in a dataset

Answer: B

Question 2

What is the purpose of the "self" parameter in Python classes?

Options :

A : It is a placeholder for future parameters

B : It represents the current instance of the class

C : It refers to the class itself

D : It is used to call other methods in the class

Answer: B

Question 3

What is the purpose of the "try-except-else" statement in exception handling?

Options :

A : To provide an alternate code path when an exception is raised.

B : To specify the types of exceptions to be caught.

C : To define a block of code that will always be executed.

D : To handle exceptions and display error messages.

Answer: A

Question 4

What is the purpose of classes in object-oriented programming?

Options :

A : To enable code reusability

B : To define behaviors and properties

C : To create objects

D : To encapsulate data and functions

Answer: D

Question 5

What does the mean() data aggregate function do?

Options :

A : Finds the maximum value in a dataset

B : Calculates the average value of a dataset

C : Sorts the dataset in ascending order

D : Returns the length of the dataset

Answer: B