CompTIA CASP+ (CAS-004) — Question 236

A bank has multiple subsidiaries that have independent infrastructures. The bank's support teams manage all these environments and want to use a single set of credentials. Which of the following is the BEST way to achieve this goal?

Answer options

• A. SSO
• B. Federation
• C. Cross-domain
• D. Shared credentials

Correct answer: B

Explanation

Federation is the best solution here as it allows multiple independent systems to share identity information, letting users access different environments with a single set of credentials. SSO, while related, typically applies to a singular domain and may not effectively manage multiple infrastructures. Cross-domain and shared credentials do not provide the robust security and management capabilities that federation offers.