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Exam 3: Making Decisions

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Question 21

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The ____________________ operator evaluates to true when its operands are considered to have the same value.

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Question 22

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Which takes precedence when the two are combined in a single statement: AND or OR?

A) OR
B) AND
C) whichever comes first
D) whichever comes last

E) A) and C)
F) A) and B)

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Question 23

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____ are diagrams used in mathematics and logic to help describe the truth of an entire expression based on the truth of its parts.

In _______________ evaluation, the computer always skips the second comparison when using an AND operator if the first comparison is false.

When you combine AND and OR operators within the same statement, the AND operators take precedence.

Computer circuitry consists of two-state on/off switches, often represented by 1 or 0.

When using the OR operator, an action is taken when at least one of the comparisons evaluates to true.

Usually, a comparison operator is used to compare values of different data types.

An AND decision can be constructed using a ____ decision.

Only a few decisions you make in a computer program involve evaluating a Boolean expression.

In a flowchart or in pseudocode, you can use the symbol that mathematicians use to mean "not equal," which is ____.

To perform a(n) ____________________, make comparisons using either the lowest or highest value in each range of values.

You might say that a path that can never be traveled in a program is a(n) ____________________ path.

An expression in which two constants are compared is called a(n) ____________________ expression.

In a(n) ____________________ condition, you ask multiple questions before an outcome is determined.

When you use a(n) ____________________ operator, only one of the conditions in an expression must be true for the resulting action to take place.

Most programming languages support a NOT operator, which reverses the meaning of a Boolean expression.

In a(n) ____________________ decision, more than one condition must be true for an action to take place.

When you need to ask multiple questions before an outcome is determined, you must create a ____.

When structures are "on top of" each other, they are known as ____________________ structures.