M04 Quiz (SDEV 120)

A _______________ expression has one of two values: true or false.

• Georgian

• Selective

• Barbarian

• Boolean

In a selection, the statements in an else clause execute _______________.

• only after the statements in the if clause execute

• when the tested condition is true

• always

• when the tested condition is false

An expression that uses a greater-than operator evaluates as true when _______________.

• the right operand is greater than the left operand

• either operand is greater than the other

• the right operand is equal to the left operand

• the left operand is greater than the right operand

A trivial Boolean expression is one that _______________.

• always has the same value

• is always false

• is always true

• uses only two operands

If x <= y is true, then _______________.

• x = y is true

• x >= y is false

• x > y is false

• y <= x is true

If j <> k is true, then _______________.

• j = k is true

• j > k is true

• j < k might be true

• both j > k and k > j are true

In an AND condition, the most efficient technique is to first ask the question that _______________.

• uses a named constant

• is least likely to be true

• contains the most operands

• is most likely to be true

If a is true and b is false, then _______________.

• a AND b is true

• a OR b cannot be determined

• a OR b is false

• a AND b is false

If p is true and q is false, then _______________.

• p OR q is true

• q is greater than p

• p AND q is true

• p OR q is false

Which of the lettered choices is equivalent to the following decision?

if x > 10 then

if y > 10 then

output "X"

endif

endif

• if x > 10 OR y > 10 then output "X" endif

• if x > 10 AND x > y then output "X" endif

• if y > x then output "X" endif

• if x > 10 AND y > 10 then output "X" endif