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Exam 4: Making Decisions

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Question 31

Multiple Choice

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In a truth table, the expression ____ is true.

A) true AND true
B) true AND false
C) false AND true
D) false AND false

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Question 32

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In an AND decision, first ask the question that is less likely to be ____________________.

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Question 33

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The NOT operator is a unary operator, meaning it takes only one operand.

When you use the ____ operator, only one of the listed conditions must be met for the resulting action to take place.

List three techniques to avoid confusion when mixing AND and OR operators.

Explain the purpose and use of the AND operator.

When you combine AND and OR operators within the same statement, which takes precedence?

Both operands in a comparison expression must be the same ____.

____ operators require two operands.

____ evaluation is when each part of an expression that uses an operator is evaluated only as far as necessary to determine whether the entire expression is true or false.

When you need to satisfy two or more criteria to initiate an event in a program, you must make sure that the second decision is made entirely independently of the first decision.

The ____ clause is the part of the decision that holds the action or actions that execute when the tested condition in the decision is true.

Match each term with a statement below.

Match each term with a statement below.

When you combine AND and OR operators, the ____ operators take precedence, meaning their Boolean values are evaluated first.

The ____ clause of the decision is the part that executes only when the tested condition in the decision is false.

Most languages allow a specialized selection structure called the ____ structure when there are several distinct possible values for a single variable, and each value requires a different subsequent action.

Explain what a range check is and provide an example.

Match each term with a statement below.

A(n) ____ decision is a decision in which two conditions must be true for an action to take place.