ENGN132 - Chapter 4

Question 1

What is a Control Structure?

Answer 1

A combination of individual instructions to a single logical unit with one entry point and one exit point.

Question 2

What is a Compound Statement?

Answer 2

A group of statements bracketed by { and } that are executed sequentially.

Question 3

Define a Selection Control Structure

Answer 3

A control Structure that chooses among alternative program statements.

Question 4

What is a Condition?

Answer 4

An expression that is either false (represented by 0) or true (usually represented by 1)

Question 5

What is a Logical Expression?

Answer 5

An expression that uses more of the logical operators
&& (and)
| | (or)
! (not)

Question 6

Define Logical Complement (Negation)

Answer 6

The complement of a condition that has the value 1 (true) when the condition’s value is 0 (false); the complement of a condition has the value 0 (false) when the conditions value is non-zero (true)

Question 7

What is a Unary Operator?

Answer 7

An operator using only one operand

Question 8

Define Short-Circuit Evaluation

Answer 8

Stopping evaluation of a logical expression as soon as its value can be determined

Question 9

Define Flowchart

Answer 9

A diagram that shows the step-by-step execution of a control structure

Question 10

What is a Hand Trace/Desk Check?

Answer 10

Step-By-Step simulation of an algorithm’s execution

Question 11

Define Decision Step

Answer 11

An algorithm step that selects on of several actions.

Question 12

Define Pseudocode

Answer 12

A combination of English phrases an C constructs to describe algorithm steps

Question 13

What is a Cohesive Function?

Answer 13

A function that performs a single operation

Question 14

Define a Nested If Statement

Answer 14

An if statement with another if statement as its true task or its false task.