Question 1

What is an algorithm?

Accepted Answer

A step by step set of instructions to solve a problem or complete a task

Question 2

Which of the following is NOT one of the three key programming constructs?

Accepted Answer

Definition

Answer

Iteration

Answer

Selection

Answer

Sequence

Question 3

What is the purpose of decomposition?

Accepted Answer

To break a large problem into smaller sub-problems, making it easier to solve.

Question 4

Which of the following is a search algorithm which divides the list of values in two?

Accepted Answer

Binary search

Answer

Selection search

Answer

Quick search

Answer

Linear search

Question 5

Computers use binary to represent which two concepts?

Accepted Answer

Data & Instructions

Answer

Information & Requests

Answer

1s & 0s

Question 6

What is an advantage of Unicode over ASCII?

Accepted Answer

Unicode has more characters.

Question 7

What is a disadvantage of Unicode compared to ASCII?

Accepted Answer

Unicode takes up more storage space

Question 8

In binary, how does a signed integer differ to an unsigned integer?

Accepted Answer

The Most Significant Bit represents the sign of the number.

Question 9

What is a mathematical expression that shows 256 numbers can be represented in 8 columns in binary?

Accepted Answer

$2^8$

Answer

2 + 2 + 2 + 2 + 2 + 2 + 2 + 2

Answer

128 + 64 + 32 + 16 + 8 + 4 + 2 + 1

Answer

2 x 8

Question 10

What is the purpose of hexadecimal?

Accepted Answer

To represent 4 digit binary numbers as a single digit hexadecimal number.

Question 11

What is 228 in binary?

Accepted Answer

11100100

Answer

11100110

Answer

11100010

Answer

11100101

Question 12

What is -56 in binary?

Accepted Answer

11001000

Question 13

What is 11001010 in hexadecimal?

Accepted Answer

CA

Answer

DB

Answer

CB

Answer

DA

Question 14

What is the purpose of abstraction?

Accepted Answer

To remove unwanted details from a problem

Question 15

What is a benefit of presenting an algorithm in a pseudocode format?

Accepted Answer

It can be understood by programmers and non-programmers

Question 16

Which of the following is not a common error type in programming?

Accepted Answer

Format

Answer

Run-time

Answer

Logic

Answer

Syntax

Question 17

Which sorting algorithm involves comparing pairs of values and moving the largest value towards the end of the list?

Accepted Answer

Bubble

Answer

Quick

Answer

Merge

Answer

Insertion

Question 18

Which of the following data types can only accept two values?

Accepted Answer

Boolean

Answer

Integer

Answer

Float

Answer

String

Question 19

Which of the following is not a loop used in Python?

Accepted Answer

REPEAT

Answer

WHILE

Answer

FOR

Question 20

Which of the following is NOT an example of a data structure?

Accepted Answer

Function

Answer

Variable

Answer

Array

Answer

List

Question 21

What is overflow in binary addition?

Accepted Answer

The result of a binary sum is too large to store in the available number of bits

Question 22

Which of the following is not required to calculate the size of an image file?

Accepted Answer

Duration

Answer

Resolution

Answer

Colour depth

Question 23

Which of the following is NOT required to calculate the size of a sound file?

Accepted Answer

Resolution

Answer

Bit Rate

Answer

Sample Rate

Answer

Duration

Question 24

What is the unit of measurement for data transmission?

Accepted Answer

bits per second

Question 25

What is the unit of measurement for data storage?

Accepted Answer

bytes

Question 26

Apply run length encoding to the following: RRRRRRRR GGGG BBBBBB

Accepted Answer

8R 4G 6B

Question 27

Which is the largest unit of data storage?

Accepted Answer

1TB

Answer

1MB

Answer

1KB

Answer

1GB

Question 28

How do you calculate the time to transmit a file?

Accepted Answer

File Size / Transmission rate

Question 29

Which is NOT an example of a lossy compression algorithm?

Accepted Answer

PNG

Answer

MP3

Answer

JPEG

Question 30

Which of the following compression algorithms doesn't remove any quality from the original?

Accepted Answer

Lossless

Answer

Lossy

Question 31

What is the name of the field that is used to uniquely identify a record in a database table?

Accepted Answer

Primary Key

Answer

Foreign Key

Answer

First Key

Answer

Pointer Key

Question 32

Which of the following is an example of structured data?

Accepted Answer

Database

Answer

Image

Answer

Spreadsheet

Answer

E-mail

Question 33

A computer system where there is no physical machine is called a?

Accepted Answer

Virtual machine

Question 34

A computer system which involves many devices working together without central control, is called?

Accepted Answer

Multi agent

Question 35

Which of the following is  an example of memory?

Accepted Answer

RAM

Answer

SSD

Answer

HDD

Answer

Optical

Question 36

Which of the following CPU components is responsible for carrying out calculations?

Accepted Answer

ALU

Answer

Registers

Answer

Data Bus

Answer

CU

Question 37

Micro-controllers can be programmed to send output to which of the following?

Accepted Answer

Actuators

Answer

Buttons

Answer

Sensors

Answer

Dials

Question 38

Which of the following BOOLEAN operators must have two positive inputs to produce a positive output

Accepted Answer

AND

Answer

OR

Answer

NOT

Question 39

Which of the following translators convert program code into machine code line by line?

Accepted Answer

Interpreter

Answer

Assembler

Answer

Compiler

Question 40

Which of the following is not a function of an operating system?

Accepted Answer

Virus management

Answer

File management

Answer

Resource management

Answer

Process management

Question 41

Which of the following is an example of application software

Accepted Answer

Web browser

Answer

Operating System

Answer

Disk defragmenter

Answer

Anti-virus

Question 42

Which of the following types of network consists of a number of computers connected on a single site?

Accepted Answer

LAN

Answer

WAN

Answer

PAN

Answer

VPN

Question 43

Which protocol(s) are responsible for the sending of data over a network?

Accepted Answer

TCP/IP

Answer

HTTPS

Answer

FTP

Answer

IMAP

Question 44

What is a network protocol?

Accepted Answer

Rules that allow devices to communicate

Question 45

Which of the following topologies consist of computers connected to a central hub?

Accepted Answer

Star

Answer

Ring

Answer

Mesh

Answer

Bus

Question 46

How is a MAC address different to an IP address?

Accepted Answer

Allocated at time of manufacture

Answer

Needs to be refreshed periodically

Answer

Can be re-issued

Answer

Allocated by the network

Question 47

How does a client-server network work?

Accepted Answer

A client sends a request to a server and the server responds with the data / file

Question 48

Which of the following is NOT a component of the Internet?

Accepted Answer

HTML

Answer

IP address

Answer

Domain names

Answer

Fibre-optic backbone

Question 49

Which of the following is NOT a component of the World Wide Web?

Accepted Answer

FTP

Answer

URL

Answer

HTTP & HTTPS

Answer

ISP

Question 50

Which of the following is NOT included in the header of a data packet?

Accepted Answer

Checksum

Answer

Packet Number

Answer

IP Address

Answer

Data Format

Question 51

Which of the following uses qubits that can store any value between 1 and 0?

Accepted Answer

Quantum Computing

Answer

Nanotechnology

Answer

DNA Computing

Answer

Artificial Intelligence

Question 52

Which of the following uses bio-molecular material to store data and instructions?

Accepted Answer

DNA Computing

Answer

Nanotechnology

Answer

Quantum Computing

Answer

Artificial Intelligence

Question 53

Which of the following focuses on developing computers to think for themselves?

Accepted Answer

Artificial Intelligence

Answer

DNA Computing

Answer

Nanotechnology

Answer

Quantum Computing

Question 54

Which of the following focuses on developing systems that are 1,000,000th of a millimetre in size?

Accepted Answer

Nanotechnology

Answer

DNA Computing

Answer

Artificial Intelligence

Answer

Quantum Computing

Question 55

Which legislation would be used to prosecute for misusing an individual's personal data?

Accepted Answer

Data Protection Act

Answer

Copyright, Designs & Patents Act

Answer

Criminal Justice & Courts Act

Answer

Computer Misuse Act

Question 56

Which legislation would be used to prosecute a crime involving hacking?

Accepted Answer

Computer Misuse Act

Answer

Criminal Justice & Courts Act

Answer

Copyright, Designs & Patents Act

Answer

Data Protection Act

Question 57

Which legislation would be used to prosecute a company that uses software without licenses?

Accepted Answer

Copyright, Designs & Patents Act

Answer

Computer Misuse Act

Answer

Criminal Justice & Courts Act

Answer

Data Protection Act

Question 58

Which legislation would be used to prosecute a person who shares explicit images of an ex-partner

Accepted Answer

Criminal Justice & Courts Act

Answer

Copyright, Designs & Patents Act

Answer

Data Protection Act

Answer

Computer Misuse Act

Question 59

Which type of software allows you access to the source code?

Accepted Answer

Open source

Question 60

Which type of software doesn't allow you access to the source code?

Accepted Answer

Proprietary

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