VCP-DCV vSphere Performance and Scaling Practice Question
An administrator is planning to scale a vSphere cluster from 8 to 16 hosts. Which consideration is most important for maintaining vSphere HA effectiveness?
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
✓
Increase the number of heartbeat datastores per host
As cluster size increases, the number of heartbeat datastores must be sufficient to ensure isolation detection. Admission control policy and slot size also matter but heartbeat datastores are critical for scaling.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Assign multiple master hosts to the cluster
Why it's wrong here
There is only one master host per cluster; multiple masters are not supported.
- ✓
Increase the number of heartbeat datastores per host
Why this is correct
With more hosts, ensuring hosts have enough heartbeat datastores prevents false isolation detection.
- ✗
Disable admission control to reduce complexity
Why it's wrong here
Disabling admission control may allow overcommitment and reduce availability guarantees.
- ✗
Adjust the slot size for admission control
Why it's wrong here
Slot size is important but not the primary scaling concern for HA effectiveness.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This VCP-DCV practice question is part of Courseiva's free VMware certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the VCP-DCV exam.