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Exam DEA-1TT4 topic 1 question 13 discussion

Actual exam question from Dell's DEA-1TT4
Question #: 13
Topic #: 1
[All DEA-1TT4 Questions]

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?

  • A. 93%
  • B. 94.1%
  • C. 95.8%
  • D. 97%
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Suggested Answer: C 🗳️
by madmax67 at Oct. 5, 2020, 3:01 p.m.

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ssajith
Highly Voted 4 years ago
Total hours in a day = 24 Total hours in a week = 24 x 7 = 168 Total hours ports are down in the week = 1 + 4 + 2 = 7 hrs Total expected availability = 100 % Total % of unavailability = 7 x 100 / 168 = 4.166667 Availability of port = 100 - 4.2 = 95.8 %
upvoted 15 times
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KZM
Most Recent 3 years, 5 months ago
{(168-7)/168}*100=95.8%
upvoted 4 times
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madmax67
4 years, 3 months ago
What is meant by 12 PM? Is it Noon or is it Midnight?
upvoted 3 times
Tigrediablo100
4 years, 3 months ago
It's noon, the Midnight would 00:00 or 12 AM
upvoted 2 times
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atidd
4 years, 3 months ago
11 AM to 12 PM = 11 AM to Noon (midday) = 1 hr. midnight is 12 AM.
upvoted 2 times
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Dazzie
3 years, 5 months ago
Noon bruh.
upvoted 1 times
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