CompTIA SecurityX (CAS-005) — Question 233

The management team at a company with a large, aging server environment is conducting a server risk assessment in order to create a replacement strategy. The replacement strategy will be based upon the likelihood a server will fail, regardless of the criticality of the application running on a particular server. Which of the following should be used to prioritize the server replacements?

Answer options

• A. SLE
• B. MTTR
• C. TCO
• D. MTBF
• E. MSA

Correct answer: D

Explanation

MTBF, or Mean Time Between Failures, is the correct choice because it directly measures the average time between failures of a system, helping to prioritize which servers are at a higher risk of failure. SLE (Single Loss Expectancy), MTTR (Mean Time To Repair), TCO (Total Cost of Ownership), and MSA (Mean Service Availability) do not specifically focus on the likelihood of server failure, making them less relevant for this replacement strategy.