PLTW Python Reference Quiz

What does the while statement do in Python?

• It identifies a section of code to repeat while the condition evaluates to true.

• It identifies a section of code to execute only once.

• It identifies a section of code to execute when an error occurs.

• It identifies a section of code to execute when a condition is false.

In the `if/else` statement in Python, what happens when the condition evaluates to True?

• The code below the `else` executes.

• The code below the `if` executes.

• The code below both `if` and `else` executes.

• The code does not execute.

In Python, what does the comparison operator a < b evaluate to?

• True if a is greater than b.

• True if a is less than b.

• True if a is equal to b.

• True if a is not equal to b.

Which comparison operator in Python evaluates to true if a is greater than or equal to b?

• a < b

• a > b

• a <= b

• a >= b

In Python, what does the comparison operator a == b evaluate to?

• True if a is greater than b.

• True if a is less than b.

• True if a is equal to b.

• True if a is not equal to b.

What does the while not statement do in Python?

• It repeats until the condition evaluates to true.

• It repeats until the condition evaluates to false.

• It repeats indefinitely.

• It does not repeat at all.

What does the '#' symbol do in Python code?

• To help readers understand the code.

• To execute a part of the code.

• To create a loop.

• To define a function.

What does the elif statement combine in Python?

• else and for

• else and while

• else and if

• if and for

In the following Python code, what will be printed if 'a' is 5?

if a > 0:
    print('pos')
elif a < 0:
    print('neg')
else:
    print('0')

• neg

• pos

• 0

• Error

Which operator is used for addition in Python?

• a - b

• a * b

• a + b

• a / b