CompTIA Security+ (SY0-501) — Question 712

Which of the following identity access methods creates a cookie on the first login to a central authority to allow logins to subsequent applications without re- entering credentials?

Answer options

• A. Multifactor authentication
• B. Transitive trust
• C. Federated access
• D. Single sign-on

Correct answer: D

Explanation

Single sign-on (SSO) is the correct answer because it allows users to log in once and gain access to multiple applications without further credential prompts. Multifactor authentication enhances security but does not eliminate the need for repeated logins. Transitive trust and federated access involve different mechanisms of trust and identity sharing, rather than simplifying the login process in the manner described.