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

int() converts a valid string representation of a whole number to an integer, so int("42") returns the integer 42.

Question 2

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

Accepted Answer

3.14 (a float)

Answer

float() converts a valid string representation of a decimal number into a floating-point value, returning 3.14.

Question 3

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

Accepted Answer

"100" (a string)

Answer

str() converts any value to its string representation, so str(100) returns the string "100".

Question 4

What does bool(0) return in Python?

Accepted Answer

False

Answer

In Python, 0 is falsy, so bool(0) returns False.

Question 5

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

Accepted Answer

3 (truncates toward zero)

Answer

int() truncates the decimal portion toward zero, so int(3.9) returns 3, not 4.

(PCEP) Certified Entry-Level Python Programmer Practice Test