Week-3 (Decision Structures & Boolean Logic)

A(n) _____ structure is a logical design that controls the order in which a set of statements execute.

• Function

• Control

• Sequence

• Iteration

Multiple Boolean expressions can be combined by using a logical operator to create _____ expressions.

• Sequential

• Logical

• Compound

• mathematical

When using the _____ operator, one or both subexpressions must be true for the compound expression to be true.

• or

• and

• not

• may be

Which logical operators perform short-circuit evaluation?

• or, not

• not, and

• or, and

• and, or, not

Which of the following is the correct if clause to determine whether y is in the range 10 through 50?

• if 10 < y or y > 50

• if 10 > y and y < 50

• if y > 10 and y < 50

• if y > 10 or y < 50

A Boolean variable can reference one of two values: _____.

• yes or no

• true or false

• T or F

• Y or N

What is the result of the following Boolean expression, if x equals 5, y equals 3, and z equals 8? x < y or z > x

• true

• false

• 8

• 5

What is the result of the following Boolean expression, if x equals 5, y equals 3, and z equals 8?

x < y and z > x

• true

• false

• 8

• 5

What is the result of the following Boolean expression, if x equals 5, y equals 3, and z equals 8?

not (x < y or z > x) and y < z

• true

• false

• 8

• 5

Which of the following is the correct if clause to use to determine whether choice is other than 10?

• if choice != 10:

• if choice != 10

• if choice <> 10:

• if choice <> 10