Exam NCM-MCI topic 1 question 22 discussion

Actual exam question from Nutanix's NCM-MCI

Question #: 22
Topic #: 1

An administrator is deploying an application using Nutanix Volumes. After configuring the volume group and connecting the guest's iSCSI initiator to the volume group, they begin performance testing. The administrator learns that performance on the virtual disk attached to the iSCSI initiator is far less than that of a virtual disk connected directly to the VM.
Which situation is causing this condition?

A. The VM's iSCSI traffic is being routed to the data services IP subnet
B. The performance test is generating small block random 10
C. The duster data services IP address is a bottleneck, shared with other iSCSI traffic
D. Data Locality ensures that VM attached disks are always faster than iSCSI volumes

Show Suggested Answer

Suggested Answer: C 🗳️

by Azimuth at Jan. 10, 2022, 5:42 a.m.

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pharoah2000

3 months, 3 weeks ago

A. is correct C. iSCSI Data Services IP enables path optimization in the cluster, preventing bottlenecks

upvoted 2 times

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Treasure

5 months ago

"far less"，So the answer C is more suitable

upvoted 1 times

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JHNSMTH

11 months, 1 week ago

Selected Answer: A

iSCSI would be routed due to different vlans, resulting in longer times.

upvoted 1 times

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Azimuth

1 year, 7 months ago

If the guest VM doesn't have an interface on the iSCSI network, the traffic will have to pass from the guest VM network, through a router, and then to the iSCSI network. I believe the answer is A.