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Exam D-ISM-FN-01 topic 5 question 7 discussion

Actual exam question from Dell's D-ISM-FN-01
Question #: 7
Topic #: 5
[All D-ISM-FN-01 Questions]

An Ethernet switch has eight ports and all ports must be operational for 24 hours from Monday through Friday. However, failures of Port 6 occur within the week as follows:

Tuesday = 6 AM to 8 AM -

Thursday = 5 PM to 10 PM -

Friday = 7 AM to 9 AM -
What is the MTBF of Port 6?

  • A. 37 hours
  • B. 32 hours
  • C. 30 hours
  • D. 40 hours
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Suggested Answer: D 🗳️
by 0871c96 at Oct. 5, 2025, 8:55 p.m.

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0871c96
1 month, 3 weeks ago
Selected Answer: A
number of failures is 3 24x5=120 total downtime=9 120-9=111 111/3=37
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