Deck 9: Time to Leave the Nest Nested Selection Structures

Question 1

You use the selection structure to make a decision and then select the appropriate path-either the true path or the false path-based on the result.

Answer 1

True

Question 2

In a nested structure, the instructions in both the true and false paths should be ____ within the outer selection structure.

A) assigned
C) collected
B) bracketed
D) indented

Answer 2

D

Question 3

A(n) ____ selection structure is contained within the outer selection structure.

A) nested
C) coated
B) indented
D) shell

Answer 3

A

Question 4

The instructions in the true path of a nested structure should not be indented within the inner selection structure.

Question 5

Logical operators, sometimes referred to as ____ operators, allow you to combine two or more conditions into one compound condition.

A) truth
C) Boolean
B) compound
D) syntactic

Question 6

With the ____ operator, all conditions must be True for the compound condition to be True.

A) AndAlso
C) AndElse
B) OrAlso
D) OrElse

Question 7

The OrElse operator has a precedence number of 9.

Question 8

Expressions containing logical operators always evaluate to a(n) ____ value.

A) Boolean
C) string
B) conditional
D) compound

Question 9

The AndAlso operator has a precedence number of 2.

Question 10

When either a selection structure's true path or its false path contains another selection structure, the inner selection structure is referred to as a(n) ____ structure.

A) indented
C) nested selection
B) nested
D) indented selection

Question 11

When comparing two numbers, keep in mind that the first number can be greater than, less than, or equal to the second number.

Question 12

Only one path in a selection structure can include instructions that declare variables, perform calculations, and so on.

Question 13

When only one decision needs to be made, it does not require a nested selection structure.

Question 14

You cannot use a nested selection structure when more than one decision must be made before the appropriate action can be taken.

Question 15

With the ____ operator, only one of the conditions needs to be True for the compound condition to be True.

A) AndAlso
C) AndElse
B) OrAlso
D) OrElse

Question 16

You use a ____ selection structure when more than one decision must be made before the appropriate action can be taken.

A) shell
C) logical
B) nested
D) split

Question 17

Only one path in a selection structure can include other selection structures.

Question 18

When swapping values there is no need to swap when the two numbers are equal.

Question 19

Logical operators are always evaluated before any comparison operators in an expression.

Question 20

Like expressions containing comparison operators, expressions containing logical operators always evaluate to a Boolean value.

Question 21

If an expression contains logical operators, comparison operators, and arithmetic operators, ____.

A) the comparison operators are evaluated last
B) the arithmetic operators are evaluated last
C) the logical operators are evaluated last
D) the operators are evaluated in order

Question 22

When the computer processes the expression 12 > 0 AndAlso 12 < 10 * 2, it evaluates the ____ operator last.

A) *
C) >
B) <
D) AndAlso

Question 23

When the computer processes the expression 12 > 0 AndAlso 12 < 10 * 2, it evaluates the ____ operator first.

A) *
C) >
B) <
D) AndAlso

Question 24

If an expression contains logical operators, comparison operators, and arithmetic operators, ____.

A) the comparison operators are evaluated first
B) the arithmetic operators are evaluated first
C) the logical operators are evaluated first
D) the operators are evaluated in order

Question 25

The pseudocode "if the hours worked are greater than or equal to 0 but less than or equal to 40" is coded as ____ in Visual Basic.

A) If decHours > 0 AndAlso decHours < 40
B) If decHours => 0 AndAlso decHours =< 40
C) If decHours >= 0 AndAlso decHours <= 40
D) If decHours >= 40 AndAlso decHours <= 0