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Exam 4: Selection Structures

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Question 1

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The area in a program where a variable can be used is formally referred to as the ____ of the variable.

A) spread
B) block
C) reach
D) scope

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

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Question 2

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An if-else statement without an else part is called a(n) ____________________ if statement.

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Question 3

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The expression in the switch statement must evaluate to a(n) ____ result or a compilation error results.

A(n) ____________________ statement is a sequence of single statements between braces.

The condition used in an if statement can be any valid C++ expression.

Including one or more if statements inside an existing if statement is called a ____ if statement.

If ____________________ statements are omitted in a switch statement, all cases following the matching case value, including the default case, are executed.

The ____________________ keyword is optional in a switch statement.

Checking user input data for erroneous or unreasonable data is referred to as ____.

The relational operator ____ is used to represent the condition less than.

Using nested if statements without including braces to indicate the structure constitutes a common programming error.

The switch statement requires you to terminate each case with a break statement.

Like all C++ expressions, relational expressions are evaluated to yield a(n) ____________________ result.

In C++, the logical ____ operator is used to change an expression to its opposite state.

A ____ relational expression consists of a relational operator that compares two operands.

In C++, strings of characters cannot be compared.

When the ____________________ logical operator is used with two simple expressions, the condition is true only if both individual expressions are true by themselves.

In the switch statement, the ____________________ keyword identifies values that are compared with the switch expression s value.

In C++, when comparing character data, the char values are coerced to ____ values automatically for the comparison.

Including one or more if statements inside an existing if statement is called a(n) ____________________ if statement.