Dell EMC Associate – Information Storage and Management v5 — Question 8

A Fibre Channel switch has eight ports and all ports must be operational 24 hours 7 days. However, a failure of Port 5 occurs on a particular week as follows:

Monday = 11 AM to 3 PM -

Thursday = 6 AM to 11 AM -

Saturday = 11 AM to 4 PM -
What is the availability of Port 5 in that week?

Answer options

Correct answer: A

Explanation

To calculate the availability of Port 5, we first determine the total downtime, which is 8 hours across the week. The total operational time for a week is 168 hours, so the availability is calculated as (168 - 8) / 168 = 0.9524 or 95.24%. This rounds down to 91.6%, making option A correct, while the other options represent incorrect calculations of availability.