Dell EMC Associate – Information Storage and Management v4 — Question 4

A Fibre Channel switch has eight ports and all ports must be operational 24×7. However, a failure of Port 5 occurs on a particular week as follows:
"¢ Monday = 11 AM to 12 PM
"¢ Thursday = 7 AM to 11 AM
"¢ Saturday = 11 AM to 1 PM
What is the availability of Port 5 in that week?

Answer options

• A. 93%
• B. 94.1%
• C. 95.8%
• D. 97%

Correct answer: C

Explanation

To calculate the availability of Port 5, we determine the total downtime, which amounts to 5 hours over a week (1 hour on Monday, 4 hours on Thursday, and 2 hours on Saturday). This results in an availability of approximately 95.8% for the week. The other options do not account for the correct calculation of downtime versus total hours in the week.