CompTIA Network+ (N10-007) — Question 274

Which of the following provides information about how often some devices fail so the IT department can take proactive measures?

Answer options

• A. MTBF
• B. MTTR
• C. SLA
• D. UPS

Correct answer: A

Explanation

MTBF, or Mean Time Between Failures, is a metric that provides insights into the reliability of devices by measuring the average time between failures. MTTR, or Mean Time To Repair, focuses on the time taken to fix a device after a failure, while SLA (Service Level Agreement) outlines service expectations, and UPS (Uninterruptible Power Supply) refers to a backup power source. Therefore, MTBF is the correct choice for assessing failure frequency.