O-LevelComputer ScienceAutomated and emerging technologies2210/11 · May/June 2022 · Q77 Marks

Adele chooses to set a biometric password for her mobile device, instead of a personal identification number (PIN).

(a)State what is meant by a biometric password.[1]
(b)Give two reasons why a biometric password is more secure than a PIN. Reason 1 Reason 2[2]
(c)Adele has a software-based firewall installed on her mobile device. The firewall gathers data about the traffic coming into and going out of her mobile device. Explain how the firewall uses the gathered data to keep the mobile device more secure.[3]
(d)Adele also encrypts the data on her mobile device to keep it more secure. State how encryption will keep the data more secure.[1]

Mark scheme

Marking points from the official mark scheme (May/June 2022). The mark or mark type is shown in brackets.

[1] Any one from: Uses biological data It uses characteristics/features that belong to a human
[2] Any two from: A biometric password cannot be guessed It is very difficult to fake a biometric password A biometric password cannot be recorded by a keylogger/spyware A perpetrator cannot shoulder surf to see a biometric password
[3] Any three from: The traffic/data is compared to set criteria/rules/whitelist/blacklist If the traffic/data does/does not meet the criteria/rules/whitelist/blacklist it will be rejected/blocked ... and an alert can be sent to warn Adele ... this can help prevent hackers/malicious software (gaining access to the data)
[1] It makes the data meaningless

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