Past Paper 2022/23

Question 1

What does EB stand for?

Answer 1

One Exabyte

Question 2

What does a typical motherboard contain?

Answer 2

CPU, Connectors for Peripheral devices, Storage, Memory, Fans, Battery, Processor Socket

Question 3

What are the 3 types of bus?

Answer 3

Control, Address, Data

Question 4

3 examples of volatile memory

Answer 4

Registers, RAM, Cache

Question 5

What is commonly included on a processor die?

Answer 5

Display processor, Cache, Cores

Question 6

3 examples of a peripheral device

Answer 6

Mouse, Keyboard, Printer

Question 7

Advantages of Flash Storage

Answer 7

Speed, Portability, Reliability, Efficiency, Drive performance, Durability

Question 8

Disadvantages of Flash Storage

Answer 8

Cost, Effectiveness, Physical damages, Lifetime, Editing, Capacity

Question 9

PCI Express is commonly used for

Answer 9

Graphics card and Solid State Storage

Question 10

What is typically used for internal connections?

Answer 10

Serial ATA and PCIe

Question 11

What is not a key operating system feature?

Answer 11

Network Scheduling

Question 12

What specialised software does the Device Management OS feature interact with?

Answer 12

Device Driver

Question 13

What does Scheduling do in the Operating Systems?

Answer 13

Managing what processes cores are running

Question 14

The BIOS is an example of

Answer 14

Firmware

Question 15

What is the most common type of consumer user interface?

Answer 15

Graphical

Question 16

List the types of networks in ascending order?

Answer 16

LAN, MAN, WAN, GAN

Question 17

A star topology network usually

Answer 17

Uses a switch to send data only to a destination and is suitable for home networks

Question 18

Which is the usual protocol for wireless networks?

Answer 18

CSMA/CA

Question 19

What are the most common network media for home networks?

Answer 19

WLAN and Cat5e/Cat6

Question 20

In most networks, an IP address is assigned automatically, what device or software does this?

Answer 20

DHCP Server

Question 21

What hardware may be used to extend a single network outside its physical range?

Answer 21

Repeater

Question 22

What is a distributed system?

Answer 22

A system that runs across multiple machines

Question 23

What kind of network is the Internet?

Answer 23

WAN

Question 24

Which connection type has the highest real world speed?

Answer 24

Fibre-optic

Question 25

Which 2 protocols form a part of the Transport Layer?

Answer 25

TCP and UDP

Question 26

What does HTML stand for?

Answer 26

Hyper Text Markup Language

Question 27

What language do most websites use?

Answer 27

CSS

Question 28

4 types of Malware

Answer 28

Trojan, Virus, Spyware, Worm

Question 29

The Distributed Denial of Service Attacks....

Answer 29

Can disable websites or other online services and are usually launched through a botnet

Question 30

An antivirus system is effective against...

Answer 30

Viruses and other malwares

Question 31

In a database of cars, a Record refers to....

Answer 31

All the data on one car

Question 32

What languages are used with SQL?

Answer 32

Data Query Language (DQL), Data Manipulation Language (DML), Data Definition Language (DDL), Data Control Language (DCL)

Question 33

Which data type is used for entering Text?

Answer 33

String

Question 34

What are advantages of a relational databases?

Answer 34

They help prevent data duplication and are easier to get complicated data subsets

Question 35

Large datasets about people are often desired by companies for...

Answer 35

Targeted Advertising and Recruitment

Question 36

Examples of 3rd generation languages

Answer 36

Java, C++, Basic, Pascal, Fortran

Question 37

What are flowcharts used for in algorithm design?

Answer 37

Visualising how a program works and Demonstrating to stakeholders

Question 38

What are the 2 types of iteration?

Answer 38

Loop and Recursion

Question 39

What is the name for the process of turning high level code into machine code

Answer 39

Translation

Question 40

What are the differences between a Tier 1 and Access ISP?

Answer 40

There's only a small number of T1, it connects directly to internet backbone and usually deals with other ISPs. Access connects to end users and businesses and it uses standard home delivery connections

Question 41

Benefits on virtual memory

Answer 41

More active programs, prevents errors from lack of memory, Faster than restarting applications

Question 42

Drawbacks of virtual memory

Answer 42

Slower than memory, Poor memory management creates large delays, Wear on storage drives

Question 43

What is the role of ICANN?

Answer 43

Handing out IP address blocks, Domain name registration, Managing Top Level Domains

Question 44

Give 3 types of attacks, what defences are effective at preventing them?

Answer 44

Malware and Antivirus. Phishing and Firewall. Hacking and Proxy Server.

Question 45

In OOP, what's the difference between a Class and an Object? How does inheritance affect this?

Answer 45

Class is a template and an Object is an instance of that class. An object will include all the method and features the class inherited.

Question 46

Explain the Hidden Terminals problem in CSMA/CA

Answer 46

One terminal can see some but not all other terminals. It indicates and begins to transmit data. Another terminal that cannot see it does the same thing. Terminals which can see both receive incoherent data.

Question 47

Explain the Fetch-Execute Cycle

Answer 47

Fetch: Retrieves the instruction from Memory Decode: Instruction is decoded and stored in instruction register Execute: Performed by the ALU, using relevant register Program Counter usage