Dell-EMC
DEA-1TT5 · Question #311
The Ethernet switch has eight ports and all ports must be operational for 24 hours, from Monday through Friday. However, a failure of Port 4 occurs as follows: Monday = 8 PM to 11 PM Wednesday = 7…
The correct answer is D. 4 hours. MTTR = Total downtime for Port 4 / Number of failures of Port 4 MTTR = 12 hours / 3 = 4 hours
Modern Data Center Infrastructure
Question
The Ethernet switch has eight ports and all ports must be operational for 24 hours, from Monday through Friday. However, a failure of Port 4 occurs as follows:
Monday = 8 PM to 11 PM Wednesday = 7 PM to 10 PM Thursday = 6 AM to 12 PM What is the MTTR of Port 4?
Options
- A28 hours
- B2 hours
- C38 hours
- D4 hours
How the community answered
(48 responses)- A4% (2)
- B17% (8)
- C8% (4)
- D71% (34)
Explanation
MTTR = Total downtime for Port 4 / Number of failures of Port 4 MTTR = 12 hours / 3 = 4 hours
Topics
#MTTR#availability#port failure#reliability metrics
Community Discussion
No community discussion yet for this question.