O-LevelComputer ScienceThe Internet and its uses2210/12 · Oct/Nov 2018 · Q47 Marks
Identify three security issues that can put a computer system at risk. Security issue 1 Security issue 2 Security issue 3
- (a)Identify three security issues that can put a computer system at risk. Security issue 1 Security issue 2 Security issue 3[3]
- (b)Explain how a firewall can help to protect a computer system from security issues.[4]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.
- [3] Three from:
- ∞ Malware
- ∞ Virus // No antivirus
- ∞ Denial of service
- ∞ Spyware // No antispyware
- ∞ Phishing // opening unknown links/emails
- ∞ Pharming // opening unknown links/emails (only award once for this alternative)
- ∞ Hacking/cracking/unauthorised access // No/weak password // No/weak firewall
- ∞ Downloading/Using unknown software
- ∞ Not updating software
- ∞ Physical issue e.g. computer/door left unlocked
- [4] Four from:
- ∞ It examines/monitors/filters traffic into and out of a computer
- ∞ It allows a user to set criteria/rules for the traffic
- ∞ It checks whether the traffic meets the criteria/rules
- ∞ It blocks any traffic that does not meet the criteria/rules // Blocks unauthorised access
- ∞ It warns a user of any unauthorised software/access/unauthorised outgoing traffic
- ∞ It keeps a log of all traffic (that can be examined)
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →