Topic 3: Understanding Structure

Question 1

A logically snarled program statements

Answer 1

Spaghetti code

Question 2

Known to be unstructured programs

Answer 2

Spaghetti code

Question 3

A basic unit of programming logic

Answer 3

Structure

Question 4

Three basic types of structures:

Answer 4

1. Sequence
2. Selection
3. Loop

Question 5

Directs the computer to process program instructions one after another in the order listed in the program

Answer 5

Sequence structure

Question 6

Can contain any number of tasks, but there is no option to branch off and skip and of the tasks

Answer 6

Sequence structure

Question 7

You ask a question and take one of two courses of actions

Answer 7

Selection structure

Question 8

Also known as decision structure or an if-then-else or dual-alternative ifs/selection

Answer 8

Selection structure

Question 9

In a ______ structure, you continue to repeat actions while a condition remains true

Answer 9

loop

Question 10

Also called repetition or iteration

Answer 10

Loop structure

Question 11

Programmers call this a while…do (or while loop)

Answer 11

Loop structure

Question 12

Attaching structures end-to-end

Answer 12

Stacking

Question 13

End structure in statements (in pseudocode)

Answer 13

1. Endif: ends an if-then-else structure
2. Endwhile: ends a loop structure

Question 14

Placing one structure within another

Answer 14

Nesting

Question 15

A group of statements that execute as a single unit

Answer 15

Block

Question 16

Reads the first input data record outside the loop where the rest of the input is read

Answer 16

Priming Read (or priming input)

Question 17

Loops must follow this order:

Answer 17

1. First ask a question
2. Take action based on the answer
3. Return to ask the question again

Question 18

Writing a structured program provides:

Answer 18

1. Clarity
2. Professionalism
3. Efficiency
4. Maintenance
5. Modularity