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Cisco 300-540 Exam - Topic 2 Question 13 Discussion

Refer to the exhibit.Refer to the exhibit. An engineer is troubleshooting a physical configuration issue in Cisco NFVI. Which two observations should be made? (Choose two.)A. The node allows two disks to fail. B. One RAID 1 disk failed. C. The node is still functional. D. The node is no longer functional. E. Two RAID 1 disks failed.
B) One RAID 1 disk failed -- correct. and C) The node is still functional -- correct; RAID1 can tolerate a single disk failure. The other options are incorrect: A and E suggest two disk failures, which is not indicated. D would be true only if both disks failed; with one disk still online, the node continues to function, though in a degraded state.

Cisco 300-540 Exam - Topic 2 Question 13 Discussion

Actual exam question for Cisco's 300-540 exam
Question #: 13
Topic #: 2
[All 300-540 Questions]

Refer to the exhibit.

Refer to the exhibit. An engineer is troubleshooting a physical configuration issue in Cisco NFVI. Which two observations should be made? (Choose two.)

A. The node allows two disks to fail. B. One RAID 1 disk failed. C. The node is still functional. D. The node is no longer functional. E. Two RAID 1 disks failed.

Show Suggested Answer Hide Answer
Suggested Answer: B, C

From the RAID controller output:

The RAID1 virtual drive is shown as ''Dgrd'' (degraded) with a note: ''RAID 1 in degraded state.''

In the PD LIST, one disk (slot 2) is marked ''UGood -- active disk in slot 2 disconnected from drive group 0'', while the other (slot 3) is ''Onln 0'' (online and part of drive group 0).

This means:

In a RAID 1 mirror, only one disk may fail while the array remains available.

Here, one disk has failed/disconnected, the other is still online the array is degraded but operational.

Therefore:


by Talia at Jun 18, 2026, 05:15 PM

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Erick
3 days ago
Exactly! D is misleading too. The node is still functional with one disk down.
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Melissa
8 days ago
Right! A and E are definitely wrong. Two failures would take it down.
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Jennifer
13 days ago
I’m confident about B and C. One disk can fail in RAID 1, and the node stays up.
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Erick
18 days ago
Agreed! I feel like I need to double-check my RAID knowledge.
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Melissa
24 days ago
I think the question is tricky. RAID configurations can be confusing.
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Juliann
29 days ago
I thought RAID 1 meant it couldn't fail at all!
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Ernestine
1 month ago
A and E are definitely wrong, only one disk issue here.
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Cory
1 month ago
Wait, how can it still work with one disk down?
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Mickie
1 month ago
Totally agree, the node is still functional!
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Chantell
2 months ago
One RAID 1 disk failed, right?
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Layla
2 months ago
I keep mixing up the RAID levels; I hope I got this right. D seems wrong because the node should still work with one disk down, right?
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Lillian
2 months ago
I practiced a similar question where one disk failure still kept the system running, so I feel confident about B and C being correct.
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Salina
2 months ago
I'm a bit unsure about option A; I thought it could allow for two failures, but I guess that's not the case here.
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Ronnie
2 months ago
I remember studying RAID configurations, and I think RAID 1 can handle one disk failure, so C makes sense.
upvoted 0 times
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