CompTIA Security+ (SY0-501) — Question 721

The concept of connecting a user account across the systems of multiple enterprises is BEST known as:

Answer options

• A. federation.
• B. a remote access policy.
• C. multifactor authentication.
• D. single sign-on.

Correct answer: A

Explanation

Federation refers to the established trust relationship allowing users to access multiple systems across different enterprises using a single account. A remote access policy governs how users can access a network remotely, multifactor authentication involves multiple methods of verifying identity, and single sign-on allows users to authenticate once to access multiple applications, but does not inherently involve multiple enterprises.