CS

Question 1

What converts assembly to machine code

Answer 1

Assembler

Question 2

Image size

Answer 2

[height * width) * colour depth

Question 3

Sound

Answer 3

Analogue is converted to digital (microphone)
Samples are taken (Sample rate Hz)
Values are rounded to levels (quantising, bits to represent each level is Sample resolution)
Binary data is stored

Question 4

Sound file size

Answer 4

Sample rate * Sample resolution * duration

Question 5

RLE

Answer 5

Run-length encoding:

May take up more space

Question 6

Huffman

Answer 6

Compresses through most frequent. Always saves or equal

Question 7

Software divisions

Answer 7

Application and system

Question 8

Application software

Answer 8

Built for user-interaction

Question 9

System software

Answer 9

Provides platform for applications to run, communicates directly with hardware.
Includes OS and utility

Question 10

Layers of the internet

Answer 10

Application
Transport
Network
(Data) Link

Question 11

Ways of network security

Answer 11

Authentication, encryption, firewall, MAC address filter

Question 12

Wi-Fi

Answer 12

Wireless fidelity

(Data) Link

Question 13

HTTP

Answer 13

Hyper-text transfer protocol

Application

Question 14

UDP

Answer 14

User datagram protocol

Transport

Question 15

SMTP

Answer 15

Simple-mail transfer protocol

Question 16

IP

Answer 16

Internet protocol

Network

Question 17

IMAP

Answer 17

Internet message access protocol

Application

Question 18

FTP

Answer 18

File transport protocol

Question 19

TCP

Answer 19

Transmission Control Protocol

Transport

Question 20

HTTPS

Answer 20

Hyper-text transfer protocol secure

Application

Question 21

2 transport protocols

Answer 21

UDP, TCP

Question 22

Network layer protocol

Answer 22

IP

Question 23

5 application protocol

Answer 23

HTTP/S, FTP, SMTP, IMAP

Question 24

(Data) Link layer

Answer 24

Wi-Fi

Question 25

Transport layer

Answer 25

How it’s transferred

Question 26

Transport layer

Answer 26

How it’s transferred

Question 27

Social engineering

Answer 27

Manipulating people to give credentials

Question 28

Phishing

Answer 28

Using SMS or email to obtain credentials

Question 29

Pharming

Answer 29

Re-directing to a fake website

Question 30

Shouldering

Answer 30

Observing private information

Question 31

Computer virus

Answer 31

Malicious code for a specific intention

Question 32

Trojan

Answer 32

Useful code, but hidden malicious code inside

Question 33

Spyware

Answer 33

Software tracks information for potentially malicious intention or for targeted adverts

Question 34

Adware

Answer 34

Software which displays adverts

Question 35

Biometric measures

Answer 35

Uses a human feature for authentication

Question 36

Password system

Answer 36

Uses a password to authenticate

Question 37

CAPTCHA

Answer 37

Prevents robot from authenticating

Question 38

Email confirmation

Answer 38

Confirms identity

Question 39

Automatic software update

Answer 39

Ensures most recent patches are installed preventing flaws being exploited

Question 40

Misconfigured access rights

Answer 40

Allows users to have administrator commands

Question 41

Application layer

Answer 41

user interaction. Consumes and produces information

Question 42

Network layer

Answer 42

Finding the destination through IP.

Question 43

(Data) Link layer

Answer 43

The sending or receiving of the data

Question 44

Transport layer

Answer 44

Putting the data into packets.