A user must log in before using a computer.
State two methods, other than a password, that an operating system can use to authenticate a user.
Mark scheme
Award one mark for any of the following up to a maximum of two marks:
- Fingerprint scan (1)
- Face recognition (1)
- Iris/retina scan (1)
- Voice recognition (1)
- Palm print/vein scan (1)
- Smart card (1)
- Security token (1)
- Authenticator app (1)
Allow one-time passcode (OTP) for authenticator app.
Do not accept password (given in the question).
Do not accept username/user ID (it identifies the user but does not authenticate them).
Do not accept 'two-factor authentication' on its own (it is a combination of methods, not a method itself).
Do not accept 'encryption'.
Example answers and how they were marked
Fingerprint scan and a smart card.
Why: Fingerprint scan (1) and smart card (1) are two accepted methods.
Fingerprint scan and a username.
Why: Fingerprint scan (1); username is not accepted because it does not authenticate the user.
A username and two-factor authentication.
Why: Username is not accepted because it does not authenticate the user, and two-factor authentication alone is not accepted because it is a combination of methods.