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N10-009 · Question #56

Which of the following is used to estimate the average life span of a device?

The correct answer is C. MTBF. 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…

Submitted by omar99· Mar 6, 2026Network Operations

Question

Which of the following is used to estimate the average life span of a device?

Options

  • ARTO
  • BRPO
  • CMTBF
  • DMTTR

How the community answered

(50 responses)
  • A
    6% (3)
  • B
    2% (1)
  • C
    90% (45)
  • D
    2% (1)

Explanation

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.

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