Nutanix Exam NCA Topic 2 Question 23 Discussion

Actual exam question for Nutanix's NCA exam

Question #: 23
Topic #: 2

User are complaining that web application hosted on a Nutanix cluster are running slow. After reviewing the performance metric, it is determined that the CPU Ready time is high in the cluster.

What entity is impacted by CPU ready time?

AOplog

BNIC

CvDisk

DVM

Show Suggested Answer

Suggested Answer: A

The oplog is a critical component of the Nutanix distributed storage fabric and can be impacted by high CPU Ready time. When the CPU Ready time is high, there can be delays in writing data to the oplog, resulting in slower overall cluster performance. Additionally, high CPU Ready time can also lead to increased write amplification, further reducing I/O performance.

by Rutha at Sep 13, 2024, 11:35 PM

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Lindy

2 months ago

High CPU ready time, huh? Sounds like the VMs are just taking a coffee break and not wanting to get back to work. Maybe we should threaten to take away their snack breaks if they don't start pulling their weight!

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Mitzie

27 days ago

D) VM

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Jules

1 months ago

C) vDisk

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Whitney

2 months ago

B) NIC

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Muriel

2 months ago

A) Oplog

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Bobbye

2 months ago

The Oplog? Really? I mean, unless this is a MongoDB-based app, I don't see how the Oplog would be the culprit here. Seems like a bit of a stretch, if you ask me.

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Sharita

2 months ago

Nah, it's gotta be the NIC. If the network's bottlenecked, that's gonna cause all sorts of performance issues. I bet those users are just waiting for their data to get from point A to point B.

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Rene

1 months ago

I agree with you, the NIC is probably causing the slow performance in the cluster.

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Evangelina

2 months ago

I'm pretty sure it's the Oplog that's impacted by CPU ready time.

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Tamra

2 months ago

No way, it's definitely the vDisk that's affected by high CPU ready time.

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Lorean

2 months ago

I think it's actually the VM that's impacted by CPU ready time.

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Nancey

2 months ago

Wait, is it the vDisks? I mean, if the CPU can't keep up, the virtual disks might be struggling to keep up with I/O requests, right? That could definitely slow things down.

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Frankie

1 months ago

Exactly, the high CPU Ready time can cause delays in processing I/O requests for virtual disks, leading to slow performance.

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Daniela

1 months ago

C) vDisk

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Margery

1 months ago

Yes, you're correct. When the CPU is busy and unable to process requests quickly, it can impact the performance of virtual disks.

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Golda

1 months ago

D) VM

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Alton

1 months ago

C) vDisk

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Adria

1 months ago

B) NIC

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Viola

2 months ago

A) Oplog

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Tonja

3 months ago

But could it also be the vDisk that is impacted?

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Apolonia

3 months ago

I agree with Pearlie, VM performance can be affected if CPU ready time is high.

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Gerald

3 months ago

Hmm, CPU Ready time, that's gotta be the VMs, right? I mean, they're the ones actually running the applications, so they're the ones that would be impacted by high CPU ready time.

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