ITPEC IP April 2026 Question 41
Which of the following is appropriate as the characteristic of single sign-on?
Explanation
High convenience: one authentication gives access to several services — single sign-on (SSO) lets a user log in once and then use multiple systems without logging in again.
The result of the first login is passed on to the other services, for example as a ticket or token that they trust. The user keeps one ID and password instead of many. The trade-off: if that one credential is stolen, every linked service is exposed, so SSO is often combined with strong authentication.
Answer (d)
Why not others:
- •(a) — processing and storing data on the server so nothing remains on the device describes a thin client
- •(b) — automatically distributing saved data across multiple disks is RAID or distributed storage, an availability measure
- •(c) — adding fingerprint and iris to a password is multi-factor (biometric) authentication; it strengthens the login but does not reduce the number of logins
Key rule: SSO is about convenience (fewer logins), not stronger authentication; its single credential becomes a more valuable target.
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