Chapter 4

Question 1

If-Then decision

Answer 1

A decision structure that contains a tested Boolean expression and an action that is taken only when the expression is true.

Question 2

Boolean Expression

Answer 2

An expression that represents only ONE of two states, usually expressed as either TRUE or FALSE.

Question 3

If-Then Clause

Answer 3

The action that holds the action that results when the Boolean expressions in the decision is true.

Question 4

Else Clause

Answer 4

The action that holds action or actions that execute only when the Boolean expressions is false.

Question 5

Rational Comparison Operators

Answer 5

The symbols that express Boolean comparisons (, =, =, <>, ==)

Question 6

Trivial Expression

Answer 6

An expressions that always evaluates as the same value.

Question 7

Compound Condition

Answer 7

When multiple questions need to be answered before determining an outcome, this is constructed.

Question 8

AND Decision

Answer 8

Contains two or more decisions, all conditions must be true for an action to take place.

Question 9

Nested Decision (Nested If)

Answer 9

A decision within either the if-then or else clause of another decision.

Question 10

Cascading If Statement

Answer 10

A series of nested if statements.

Question 11

Conditional AND Operator ( AND Operator)

Answer 11

A symbol that you use to combine decisions so that two or more conditions must be true for an action to occur.

Question 12

Truth Tables

Answer 12

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

Question 13

Short-circuit evaluation

Answer 13

A logical feature in which expressions in each part of a large expression are evaluated only as far as necessary to determine the final outcome.

Question 14

Or Decision

Answer 14

Contains two more decisions, if at least on e condition is met, the resulting action takes place.

Question 15

Conditional Or Operator (Or Operator)

Answer 15

A symbol that you combine decisions when any one condition can be true for an action to occur.

Question 16

Logical Not Operator

Answer 16

A symbol that reverses the meaning of a Boolean expression.

Question 17

Range Check

Answer 17

Comparing a variable to a series of values that mark the limiting ends of ranges.

Question 18

Dead Path (Unreachable Path)

Answer 18

The logical path that can never be traveled.

Question 19

Precedence

Answer 19

The quality of an operation that determines the order in which it is evaluated.

Question 20

Less Than Operator

Answer 20

<

Question 21

Greater Than Operator

Answer 21

>

Question 22

Equal to Operator

Answer 22

= or ==

Question 23

Less Than or equal to operator

Answer 23

<=

Question 24

Greater Than or Equal to Operator

Answer 24

> =

Question 25

Not Equal to Operator

Answer 25

<> or !=

Question 26

And Operator General Rule

Answer 26

The General rule when using this decision operator, it is better to start with the decision that is less likely to be true.

Question 27

Or Operator General Rule

Answer 27

The General rule when using this decision operator, it is better to start with the decision that is more likely to be true.

Question 28

Gorge Boole (1815-1864)

Answer 28

Also known as the founder mathmatical logic, He approched logic more simply by expressing logical selections with common algebraic symbols. A logical expression was named after him.

Question 29

Greater Than (>), Less Than (>), and Equal To (=)

Answer 29

What are the three types of comparisons that any decisions can be made of?