ITPEC IP October 2019 Question 38
ITPEC IP October 2019 — Question 38 of 100
Matrix authentication asks the user to enter characters found at remembered or requested positions in a displayed table. The challenge can vary by selecting different coordinates, so the user does not transmit the entire secret matrix each time.
Answer (c)
Why not others:
- a password usable once is a one-time password, not single sign-on
- one authentication granting access to multiple services is single sign-on, not a one-time password
- fingerprints and voiceprints are biometric authentication, not challenge-response by definition
Key rule: Matrix authentication uses coordinate-selected table values; SSO, OTP, and biometrics are distinct authentication schemes.
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