National 5 Computing Revision 2021

Which data type can only store 'True' or 'False'?

• Integer

• Character

• Boolean

• String

• Real

SET age TO 15

is an example of:

• Assignment

• Arithmetic Operations

• Concatenation

• Iteration

Why is the Software Development Process said to be iterative?

• Because you test your program when it is finished

• Because earlier stages may be revisited as a result of information gained at later stages

• Because program code often contains loops

• Because internal commentary explains what the code is doing

Which of these should be included in the wireframe for an app or program?

• Buttons and text boxes

• Internal Commentary

• Loops and Conditional Statements

• Entities and attributes

SET fullname TO firstname & " " & surname

is an example of:

• Assignment

• Arithmetic Operations

• Concatenation

• Iteration

FOR times = 0 TO 5 DO

is an example of:

• Assignment

• Iteration - a conditional loop

• Concatenation

• Iteration - a fixed loop

IF age>=18 THEN

is an example of:

• Assignment

• Iteration - a conditional loop

• Concatenation

• Selection - a conditional statement

Here is code to input 5 names into an array:

DECLARE name(4) AS ARRAY OF STRING

FOR ticker = 0 TO 4 DO

RECEIVE name(_________) FROM KEYBOARD

END FOR

What should be in the brackets in the third line of code above?

• input

• ticker

• name

• next

The following code ensures that the length of a password is valid:

DO

RECEIVE pass FROM KEYBOARD

IF Length(pass) <8 THEN

SEND "too short, re-enter" TO KEYBOARD

END IF

LOOP UNTIL Length(pass) >=8

State a parameter from the above code

• DO

• Length

• pass

• >=

The following code ensures that the length of a password is valid:

DO

RECEIVE pass FROM KEYBOARD

IF Length(pass) <8 THEN

SEND "too short, re-enter" TO KEYBOARD

END IF

LOOP UNTIL Length(pass) >=8

State a predefined function from the above code

• Round

• Length

• pass

• >=