Past Paper Questions

Question 1

Suitable prevention methods for unauthorised access

Answer 1

firewall,
strong password,
access rights,
security questions,
two-step authentication

Question 2

Suitable prevention methods for viruses

Answer 2

antivirus/antimalware software
firewall
network restrictions eg no downloads
do not plug in unknown storage devices

Question 3

Suitable prevention methods for phishing

Answer 3

firewall
don’t click unknown links
spam filter
education
check if website/user is fake

Question 4

suitable prevention methods for phishing

Answer 4

encryption

Question 5

Suitable prevention methods for spyware

Answer 5

anti-spyware

Question 6

Suitable prevention methods for pharming

Answer 6

check web address is valid

Question 7

Suitable prevention method/s for DDOS/DOS

Answer 7

Proxy server
firewall

Question 8

Suitable prevention method/s for ransomware

Answer 8

Antimalware

Question 9

Suitable prevention method/s for SQL injections

Answer 9

network forensics
suitable form validation

Question 10

Suitable prevention method/s for social engineering

Answer 10

training

Question 11

Suitable prevention method/s for poor network policy

Answer 11

education/setting rules

Question 12

Suitable prevention method/s for hardware failure / loss

Answer 12

backup

Question 13

Devices on Hope’s network do not currently have internet access. What device could Hope add to connect her home network to the Internet?

Answer 13

Modem / Router

Question 14

The network has a WAP in the kitchen that transmits on a 5Ghz frequency. Why does the laptop have better network performance in the kitchen than in the bedroom? [2]

Answer 14

Wifi bandwidth/signal will be weaker/less because 5GHz is only short range
Bedroom further away from WAP than kitchen
signal has to go through floor/walls

Question 15

The network has a WAP in the kitchen that transmits on a 5Ghz frequency. Explain how Hope could improve the wireless network performance in her bedroom

Answer 15

Change to 2.4GHz
Install signall booster/another WAP/mesh wifi
Move WAP closer to bedroom
Reduce number of devices connected

Question 16

Ways you can tell that a network is peer to peer not client server

Answer 16

-No server
-computers directly connected
-decentralised
-software installed/updated independantly
-less initial cost/maintenance
-specialist required to setup client server
-easier to add devices
-less need for file sharing
-if any device fails / is removed the remainder can continue

Question 17

Benefits of storing files on cloud

Answer 17

access from any device
security may be higher than home security
Easier to share files, increase capacity
no extra hardware

Question 18

Drawbacks of cloud storage

Answer 18

-can’t access files w/out internet access
-can’t control security…data may be hacked/stolen
-may cost monthly fee…cost more long term than hardware?
-cloud fails->lose data
-maybe slow connection
-data must transfer to computer to read; may be intercepted
-stop paying-> must find alternative
-lost password->no access

Question 19

What is Cache?

Answer 19

High speed memory
stores recent instructions