Control Structures

Question 1

Name the 5 Control Structures

Answer 1

1. Sequence
2. Binary Selection
3. Casewhere
4. Pre Test Loop
5. Post Test Loop

Question 2

What is Sequence?

Answer 2

Sequence is one event after another

Question 3

What is Repetition?

Answer 3

There are 2 types of Repetition: - Pre Test Loop

- Post Test Loop

Question 4

What is the Syntax for a Pre-test loop

Answer 4

WHILE (Test Condition) is TRUE
DO (Process1)
ENDWHILE

Question 5

What is the Syntax for a Post-test loop

Answer 5

(Statement Before Loop)
REPEAT (Process)
UNTIL (Test Condition) is TRUE
(Statement after loop)

Question 6

What is the Pseudocode for Sequence

Answer 6

BEGIN
(Process1)
(Process2)
END

Question 7

What is the Pseudocode for Binary Selection

Answer 7

IF (Test Condition)  = TRUE THEN
DO (Process1)
ELSE
DO (Process2)
ENDIF

Question 8

What is the Pseudocode for Casewhere?

Answer 8

CASEWHERE (Expression E.g. Cereal, Book, Movie)
         -Choice1: (Process1)
         -Choice2: (Process2)
          -Otherwise: (Default Process)
END CASE

Question 9

What is Repetition used for?

Answer 9

Used to loop a number of steps until some condition is satisfied