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D-ISM-FN-01 · Question #447

The Ethernet switch has eight ports and all ports must be operational for 24 hours, from Monday through Friday. However, a failure of Port 4 occurs as follows: - Monday = 8 PM to 11 PM - Wednesday =…

The correct answer is D. 4 hours. See the full explanation below for the reasoning.

Storage Management

Question

The Ethernet switch has eight ports and all ports must be operational for 24 hours, from Monday through Friday. However, a failure of Port 4 occurs as follows:

  • Monday = 8 PM to 11 PM
  • Wednesday = 7 PM to 10 PM
  • Thursday = 6 AM to 12 PM

What is the MTTR of Port 4?

Options

  • A28 hours
  • B2 hours
  • C38 hours
  • D4 hours

How the community answered

(51 responses)
  • A
    10% (5)
  • B
    4% (2)
  • C
    2% (1)
  • D
    84% (43)

Topics

#MTTR#mean time to repair#availability calculation#fault management

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