Software Development

Question 1

What is assignment

Answer 1

(Process)
Give a value to a variable

Question 2

What is a selection statement

Answer 2

A section of code that is run only if a condition is met
(If statements)

Question 3

Logical Operators

Answer 3

AND , OR , NOT

Question 4

Define iteration

Answer 4

Means to repeat something

Question 5

Standard Algorithms

Answer 5

Input Validation:
(While loops, conditional loops)

Running Total:
Adding something within the loop

Traversing an Array:
When you loop through every item in an array

Question 6

Concatenation

Answer 6

Joining variables within strings

Question 7

Fixed loop

Answer 7

The number of loops is predetermined

Question 8

Normal test

Answer 8

Input Something the programe accepts

Question 9

Exceptional test data

Answer 9

Input something the programe doesn’t expect

Question 10

Extreme test data

Answer 10

Highest or lowest values that the program accepts

Question 11

Data types

Answer 11

String, character, real, boolean, integer

Question 12

Logic error

Answer 12

Program runs but there is a processing/calculation error

Question 13

Syntax error

Answer 13

Something wrong in the code

Question 14

Exceptional error

Answer 14

The program doesnt know how to compute with the input

Question 15

Define an Array

Answer 15

A record structure that can store multiple variables of the same type

Question 16

Pre-defined functions

Answer 16

Random, length, round

Question 17

How to make code more readable

Answer 17

Meaningful variable names
White space
Indentation
Internal commentry

Question 18

Design notations

Answer 18

Wireframes
Structured diagram
Psuedocode
Python

Question 19

Code for fixed loop

Answer 19

For i in range( ):

Question 20

Code for conditional loops

Answer 20

While number >=12:

Question 21

Code for random

Answer 21

Import random
Variable=random.randint(1,100)

Question 22

Code for rounding

Answer 22

Cost = 12.67
Cost = round(cost,1)

Question 23

Code for length with conditional loop

Answer 23

While len(variable) <8:

Question 24

How to add to an array

Answer 24

array.append(“value”)

Question 25

How to traverse an array

Answer 25

For i in range(len(array)):

Question 26

What is the mantissa?

Answer 26

The number after the 0.

Question 27

What is the exponent

Answer 27

The small number that means to the power of…

Question 28

What is ASCII

Answer 28

American Standard Code for Information Interchange

Question 29

How many bits are in a byte

Answer 29

8

Question 30

What are Bitmap graphics used for

Answer 30

Creating realistic images

Question 31

What is a bitmap

Answer 31

An image made up of really small dots called pixels

Question 32

Advantages / disadvantages of bitmaps

Answer 32

Advantages: create
realistic images, individual pixels can be edited

Disadvantages:
large file size, lose quality when scaled up

Question 33

Vector graphs are…

Answer 33

Made up of Objects and are for creating unrealistic objects like cartoons

Question 34

Objects that can be manipulated
(Vector graphs)

Answer 34

Rectangle,
Ellipse
Line
Polygon

Question 35

Attributes of the objects

Answer 35

Fill colour,
Line colour
Coordinates

Question 36

Vectors advantages, disadvantages

Answer 36

Advantages:
Small file size, dont lose quality when upscaled, can layer objects

Disadvantages:
Not good for realism

Question 37

Security precautions

Answer 37

Firewalls
Encryption

Question 38

Define encryption

Answer 38

The scrambling of data

Question 39

Define firewalls

Answer 39

Prevents unauthorised access to your computer

Question 40

CPU Main parts

Answer 40

Processor
Memory
Buses

Question 41

Processor main parts

Answer 41

Control Unit
Arithmatic Logic Unit
Registers

Question 42

ALU Function

Answer 42

Does math
Performs logical decisions like: AND, OR, NOT

Question 43

Contrl Unit Function

Answer 43

Responsible for fetching and execution of program instructions

Question 44

Registers function

Answer 44

Temporary data storage location

Question 45

What is RAM

Answer 45

Made up of unique address locations

Question 46

Buses function

Answer 46

Trandferring info between the computer system

Question 47

Data bus function

Answer 47

Goes both directions

Question 48

Adress bus function

Answer 48

Goes 1 way
Holds the addresses of the memory locations currently being accessed

Question 49

Complier advantages and disadvantages

Answer 49

Adavntages:
Runs faster, if no errors are found then the program doesnt need to be translated again

Disadvantages:
If there is an error the program will not run,
Errors are harder to correct

Question 50

Interpreter advantages and disadvantages

Answer 50

Adv.
Errors identified immediately,
Runs code until it finds an error

Dis.
Uses up RAM and processor time
Slower