CENG513 Hw_Test_Fault_Tolerance_2

What is Mean Time Between Failures (MTBF) used to measure?

• System availability

• Reliability

• Maintainability

• Fault tolerance

Which of the following metrics represents the proportion of time a system is operational and can perform its intended functions?

• Mean Time To Failure (MTTF)

• Mean Time To Repair (MTTR)

• Availability

• Failure Rate

What does the term "Fault Tolerance" measure in the context of dependability?

• System's ability to avoid failures

• System's ability to recover from failures

• Time between failures

• Mean Time To Repair (MTTR)

Which measure assesses how quickly a system can be restored to full functionality after a failure?

• Reliability

• Mean Time To Failure

• Maintainability

• Availability

What is the primary focus of Mean Time To Failure (MTTF)?

• Time between consecutive failures

• Time to detect and correct a failure

• Average time a system operates without failure

• Time to recover from a failure

What is the primary purpose of assessing the failure rate in system dependability?

• To maximize system complexity

• To minimize system cost

• To enhance system performance

• To quantify the likelihood of system failures

Reliability in system dependability is often measured using metrics such as MTBF (Mean Time Between Failures). What does MTBF represent?

• Total system uptime

• Average time to repair

• Average time between two successive failures

• Mean time for system startup

Which factor is inversely related to system reliability?

• Failure rate

• Mean Time to Repair (MTTR)

• Availability

• System complexity

In the context of system dependability, what is the significance of the "Bathtub Curve"?

• Represents the cost of system maintenance

• Describes the failure pattern over time

• Indicates the system's performance curve

• Illustrates the relationship between cost and reliability