VCP-DCV Configure and Manage vSphere Storage Practice Question
A storage administrator is planning a vSAN stretched cluster for a remote office. The cluster must support stretching across two sites for disaster avoidance. Which two prerequisites must be met? (Choose two.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The network latency between sites must be less than 5 ms round-trip.
Correct options A and C: Each site must have a minimum of two hosts (C) and network latency between sites must be less than 5 ms round-trip (A). Option B is incorrect because the witness host must be placed at a third site, not the primary. Option D is incorrect because hosts can use multiple network adapters for vSAN traffic; a single adapter is not required. Option E is incorrect because a vSAN stretched cluster typically uses two fault domains (one per site) plus a witness, not four.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The network latency between sites must be less than 5 ms round-trip.
Why this is correct
Latency must be under 5 ms round-trip to ensure acceptable performance for vSAN synchronization traffic.
- ✗
The witness host must be placed at the primary site.
Why it's wrong here
The witness host must be placed at a third, independent site to avoid a single point of failure and maintain quorum.
- ✓
Each site must have a minimum of two hosts.
Why this is correct
Each site requires at least two hosts to provide redundancy and support the stretched cluster configuration.
- ✗
All hosts must be configured with a single network adapter for vSAN traffic.
Why it's wrong here
Hosts can use multiple network adapters for vSAN traffic for redundancy and performance; a single adapter is not required.
- ✗
A vSAN stretched cluster requires a minimum of four fault domains.
Why it's wrong here
A vSAN stretched cluster uses two fault domains (one per site) and a separate witness host, not four fault domains.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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