2.1.4 How to manage variables within a program

Question 1

Define:

Scope

Answer 1

“Where a variable can be accessed within a program”

Question 2

Fill The Blank:

A ………. variable is only accessable in a pre-determined part of a program

Answer 2

Local

Question 3

Fill The Blank:

Two variables can use the same identifier if they are in different ………. because they are in a seperate area in ………

Answer 3

Scopes, RAM

Question 4

Fill The Blank:

The scope of a local variable is the ………… where it has been ………..

Answer 4

Subprogram, Declared

Question 5

Fill The Blank:

The scope of a global variable is the …………. program

Answer 5

Complete

Question 6

State:

Where global variables are declared

Answer 6

Start of the program

Question 7

State:

Where local variables are declared

Answer 7

Declared within subroutines or programming blocks and can only be used within the scope it is declared in

Question 8

Define:

Snakecase

Answer 8

Where words are delimited using underscores: Variable_a

Question 9

Define:

Camelcase

Answer 9

All words are started with a capital letter, apart from the first word with no spaces: variableA

Question 10

Define:

Pascalcase

Answer 10

words are started by capital letters: VariableA

Question 11

Define:

Hungarian Notation

Answer 11

Describe the purpose and/ore type of variable at the start followed by a descriptor that states the function of the variable: iStudentMarks

Question 12

Fill The Blank:

It is important variable names are ……………. and easily ……………… and understandable.

Answer 12

Consistent, Readable