ExamAdept

What is the purpose of the enumerate function when used with a for loop?

A:

Counts the total number of iterations.

B:

Iterates over the values of a sequence.

C:

Returns the index and value of each element in a sequence.

D:

Reverses the order of iteration.

Answer: C

The enumerate function is used in a for loop to iterate over both the index and value of each element in a sequence.

📖

How can you create an infinite loop?

A:

for i in range(10):

B:

while True:

C:

for i in range(1, 0, -1):

D:

while False:

Answer: B

while True: creates an infinite loop, as the condition is always true.

📖

In Python, what is the purpose of the else block in a while loop?

A:

It is executed when the loop is terminated prematurely.

B:

It is executed only if an exception occurs in the loop.

C:

It is executed when the loop condition becomes False.

D:

It is executed when the loop condition is True.

Answer: C

The else block in a while loop is executed when the loop condition becomes False.

📖

Which statement is used to iterate over a sequence and execute a block of code as long as a specified condition is True?

A:

for

B:

while

C:

do-while

D:

if

Answer: B

The while loop is used to iterate over a sequence and execute a block of code as long as a specified condition is True.

📖

What does the zip function do when used with loops?

A:

Combines multiple sequences into tuples.

B:

Iterates over the values of a sequence.

C:

Reverses the order of iteration.

D:

Checks for equality of elements in multiple sequences.

Answer: A

The zip function combines multiple sequences into tuples, allowing you to iterate over corresponding elements from each sequence simultaneously.

📖

Questions for: Loops