PCEP Type Conversion and Built-in Functions

Question 1

What is the result of evaluating int("42") in Python?

Accepted Answer

42 (an integer)

Answer

"42" (a string)

Answer

42.0 (a float)

Answer

A TypeError is raised

Question 2

What does float("3.14") return in Python?

Accepted Answer

3.14 (a float)

Answer

3 (an integer)

Answer

"3.14" (a string)

Answer

A ValueError is raised

Question 3

What is the result of str(100) in Python?

Accepted Answer

"100" (a string)

Answer

100 (integer unchanged)

Answer

100.0 (a float)

Answer

A TypeError is raised

Question 4

What does bool(0) return in Python?

Accepted Answer

False

Answer

True

Answer

0

Answer

None

Question 5

What is the result of int(3.9) in Python?

Accepted Answer

3 (truncates toward zero)

Answer

4 (rounds up)

Answer

A ValueError is raised

Answer

3.9 (unchanged)

Question 6

What happens when you execute int("hello") in Python?

Accepted Answer

Raises a ValueError

Answer

Returns 0 as a default

Answer

Returns None

Answer

Returns "hello" unchanged

Question 7

Which of the following is the correct output of type(3.14) in Python?

Accepted Answer

Answer

"float"

Answer

float()

Answer

(float)