VCP-DCV vSphere Performance and Scaling Practice Question
Which setting must be consistent across all hosts in a vMotion migration to ensure that virtual machines maintain optimal performance after migration?
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
✓
Enhanced vMotion Compatibility (EVC) mode.
Enhanced vMotion Compatibility (EVC) ensures that the CPU features presented to virtual machines are consistent across all hosts in a cluster, preventing performance degradation due to CPU feature masking during vMotion. Option B is incorrect because resource pool shares control resource allocation but do not affect vMotion compatibility or post-migration performance. Option C is incorrect because Distributed Power Management (DPM) manages host power states and does not directly impact vMotion performance. Option D is incorrect because NUMA node alignment is important for memory locality performance but is not a prerequisite for vMotion; it can be configured after migration.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enhanced vMotion Compatibility (EVC) mode.
Why this is correct
EVC ensures that all hosts present the same CPU feature set to VMs, preventing performance drops after migration.
- ✗
Resource pool shares configuration.
Why it's wrong here
Shares are not part of vMotion compatibility checks.
- ✗
Distributed Power Management (DPM) threshold.
Why it's wrong here
DPM affects power management, not vMotion performance consistency.
- ✗
NUMA node alignment for each VM.
Why it's wrong here
NUMA alignment is important for performance but is not a vMotion requirement.
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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.