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Question 54/83
Which of the following is used to estimate the average life span of a device?
Correct Answer: C
* Understanding MTBF:
* Mean Time Between Failures (MTBF): A reliability metric that estimates the average time between successive failures of a device or system.
* Calculation and Importance:
* Calculation: MTBF is calculated as the total operational time divided by the number of failures during that period.
* Usage: Used by manufacturers and engineers to predict the lifespan and reliability of a device, helping in maintenance planning and lifecycle management.
* Comparison with Other Metrics:
* RTO (Recovery Time Objective): The maximum acceptable time to restore a system after a failure.
* RPO (Recovery Point Objective): The maximum acceptable amount of data loss measured in time.
* MTTR (Mean Time to Repair): The average time required to repair a device or system and return it to operational status.
* Application:
* MTBF is crucial for planning maintenance schedules, spare parts inventory, and improving the overall reliability of systems.
References:
* CompTIA Network+ study materials on reliability and maintenance metrics.
* Mean Time Between Failures (MTBF): A reliability metric that estimates the average time between successive failures of a device or system.
* Calculation and Importance:
* Calculation: MTBF is calculated as the total operational time divided by the number of failures during that period.
* Usage: Used by manufacturers and engineers to predict the lifespan and reliability of a device, helping in maintenance planning and lifecycle management.
* Comparison with Other Metrics:
* RTO (Recovery Time Objective): The maximum acceptable time to restore a system after a failure.
* RPO (Recovery Point Objective): The maximum acceptable amount of data loss measured in time.
* MTTR (Mean Time to Repair): The average time required to repair a device or system and return it to operational status.
* Application:
* MTBF is crucial for planning maintenance schedules, spare parts inventory, and improving the overall reliability of systems.
References:
* CompTIA Network+ study materials on reliability and maintenance metrics.
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