CompTIA Security+ (SY0-501) — Question 276

Company A has acquired Company B. Company A has different domains spread globally, and typically migrates its acquisitions infrastructure under its own domain infrastructure. Company B, however, cannot be merged into Company A's domain infrastructure.
Which of the following methods would allow the two companies to access one another's resources?

Answer options

• A. Attestation
• B. Federation
• C. Single sign-on
• D. Kerberos

Correct answer: B

Explanation

Federation allows different domains to share resources and authenticate users across each other's networks, making it the correct choice here. Attestation, Single sign-on, and Kerberos do not provide the necessary cross-domain access that is required for Company A and Company B to share resources effectively.