Dell-EMC
DEA-1TT5 · Question #223
A Fibre Channel switch has eight ports and all ports must be operational from 8 AM to 8 PM, Monday through Friday. However, a failure of Port 2 occurs on a particular week as follows: - Monday = 10…
The correct answer is D. 80%. 12x5 (Mon-Fri 8am to 8PM) = 60 hours only four hours on Wednesday from 4 pm to 8 pm 2 + 4 + 3 + 3 = 12 Hours (48 / 60 )* 100 = 80 %
Modern Data Center Infrastructure
Question
A Fibre Channel switch has eight ports and all ports must be operational from 8 AM to 8 PM, Monday through Friday. However, a failure of Port 2 occurs on a particular week as follows:
- Monday = 10 AM to 12 PM
- Wednesday = 4 PM to 9 PM
- Thursday = 4 PM to 7 PM
- Friday = 3 PM to 6 PM
- Saturday = 9 AM to 1 PM
What is the availability of Port 2 in that week?
Options
- A70%
- B71.6%
- C78.3%
- D80%
How the community answered
(29 responses)- A3% (1)
- B14% (4)
- C3% (1)
- D79% (23)
Explanation
12x5 (Mon-Fri 8am to 8PM) = 60 hours only four hours on Wednesday from 4 pm to 8 pm 2 + 4 + 3 + 3 = 12 Hours (48 / 60 )* 100 = 80 %
Topics
#availability calculation#Fibre Channel#port failure#uptime metrics
Community Discussion
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