MTBF is associated with which aspect of a network?

• A. Mean Time Between Failures
• B. Maximum Time Before Failure
• C. Most Time Before Failure
• D. Mean Time Between Features

Answer: (A)

MTBF measures reliability by showing the average time a component or system operates before a failure occurs. It represents the typical interval between failures, not a maximum or the most time it could run, and it has nothing to do with features. This metric is useful for planning maintenance and estimating availability (often used together with MTTR to gauge how much uptime you can expect). In networks, MTBF can apply to hardware like routers, power supplies, or links to indicate how reliably they operate over time.