Dell-EMC
D-ISM-FN-01 · Question #432
An Ethernet switch has eight ports and all ports must be operational for 24 hours, from Monday through Friday. However, a failure of Port4 occurs as follows: - Monday = 8 PM to 9 PM - Wednesday 7 PM…
The correct answer is A. 2 hours. See the full explanation below for the reasoning.
Storage System Environment
Question
An Ethernet switch has eight ports and all ports must be operational for 24 hours, from Monday through Friday. However, a failure of Port4 occurs as follows:
- Monday = 8 PM to 9 PM
- Wednesday 7 PM to 9 PM
- Thursday = 6 AM to 9 AM
- Saturday = 4 PM to 7 PM
What is the MTTR of Port 4?
Options
- A2 hours
- B3 hours
- C28 hours
- D38 hours
How the community answered
(51 responses)- A82% (42)
- B10% (5)
- C6% (3)
- D2% (1)
Topics
#MTTR#availability calculation#port failure#reliability metrics
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