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VMware 5V0-21.21 Exam - Topic 6 Question 100 Discussion

Actual exam question for VMware's 5V0-21.21 exam

Question #: 100
Topic #: 6

[All 5V0-21.21 Questions]

In a stretched vSAN cluster, how is Read Locality established after fail over to the secondary site?

A100% of the reads comes from vSAN hosts on the local site

B50% of the reads comes from vSAN hosts on the local site

C100% of the reads comes from vSAN hosts on the remote site

D50% of the reads comes from vSAN hosts on the remote site

Show Suggested Answer

Suggested Answer: C

In the event of a failure or maintenance event, the virtual machine is restarted on the remote site. The 100% rule continues in the event of a failure. This means that the virtual machine will now read from the replica on the site to which it has failed over. One consideration is that there is no cached data on this site, so cache will need to warm for the virtual machine to achieve its previous levels of performance.

by Karon at Jul 19, 2026, 11:02 PM

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Meaghan

3 days ago

I thought it was more complicated than that!

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Queenie

8 days ago

B) 50% of the reads comes from vSAN hosts on the local site is more realistic.

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Karl

13 days ago

Wait, how can it be 100%? What if the local site is down?

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Tracey

18 days ago

Totally agree with that! Makes sense.

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Zachary

24 days ago

A) 100% of the reads comes from vSAN hosts on the local site.

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Roxane

29 days ago

I remember reading about how read locality is crucial, but I can't recall if it was 100% or 50%. I guess it could be D, but I'm not confident.

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Delsie

1 month ago

I have a vague recollection that in a stretched cluster, the reads might still be impacted by the remote site. So, could C be a possibility?

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Kallie

1 month ago

I'm not entirely sure, but I feel like we discussed something about 50% reads coming from the local site in a similar practice question. Could it be B?

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Osvaldo

1 month ago

I think I remember that after a failover, all reads should ideally come from the local site to maintain performance, so maybe it's A?

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