ITPEC IP April 2024 Question 43
ITPEC IP April 2024 — Question 43 of 100
Single sign-on improves convenience by letting a user authenticate once and then access multiple connected services. A trusted identity provider or centralized authentication mechanism establishes the user's identity, and participating applications accept that result rather than asking for a separate login each time. This can also simplify account administration, although the shared authentication service must be strongly protected.
Answer (d)
Why not others:
- (a) describes server-based or thin-client data handling
- (b) describes disk redundancy such as RAID
- (c) describes multifactor or biometric authentication, which can be combined with SSO but is not its defining characteristic
Key rule: SSO concerns how many times a user authenticates across services; MFA concerns how many different authentication factors the user supplies.
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