O-LevelComputer ScienceThe Internet and its uses2210/12 · May/June 2021 · Q412 Marks
Three types of Internet security risk are virus, spyware and denial of service (DoS) attack.
- (a)Six statements are given about Internet security risks. Tick (✔) to show whether the statement applies to virus, spyware or denial of service. Some statements may apply to more than one Internet security risk. Statement Virus (✔) Spyware (✔) Denial of service (✔) captures all data entered using a keyboard can be installed onto a web server prevents access to a website is malicious code on a computer is self-replicating damages the files on a user's hard drive[6]
- (b)Identify three other types of Internet security risks.[3]
- (c)Some Internet security risks can maliciously damage data. Data can also be damaged accidentally. State three ways that data could be accidentally damaged.[3]
Mark scheme
Marking points from the official mark scheme (May/June 2021). The mark or mark type is shown in brackets.
- [1] captures all data entered using a keyboard: Spyware (✔)
- [1] can be installed onto a web server: Virus (✔), Spyware (✔)
- [1] prevents access to a website: Denial of service (✔)
- [1] is malicious code on a computer: Virus (✔), Spyware (✔)
- [1] is self-replicating: Virus (✔)
- [1] damages the files on a user's hard drive: Virus (✔)
- [1] Phishing
- [1] Pharming
- [1] Hacking // cracking
- [1] Human error
- [1] Power failure/surge
- [1] Hardware failure
- [1] Software failure
- [1] Fire
- [1] Flood
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