VCP-DCV vSphere Performance and Scaling Practice Question
A VM is experiencing high CPU ready time. The host has 16 physical cores and 20 vCPUs total across all VMs. Which action is MOST likely to reduce the CPU ready time on the VM?
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
✓
Decrease the number of vCPUs on the VM.
Reducing the number of vCPUs on an over-provisioned VM decreases scheduling contention, lowering CPU ready time. Increasing vCPUs would worsen the issue. Migrating to another host with similar load would not help long-term. Increasing memory does not directly reduce CPU contention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Migrate the VM to another host with the same CPU load.
Why it's wrong here
Migrating to a similarly loaded host will not reduce ready time.
- ✓
Decrease the number of vCPUs on the VM.
Why this is correct
Reducing vCPUs decreases scheduling contention and lowers CPU ready time.
- ✗
Increase the number of vCPUs on the VM.
Why it's wrong here
Increasing vCPUs on an already over-provisioned VM will increase CPU ready time.
- ✗
Increase the memory reservation for the VM.
Why it's wrong here
Memory reservation does not affect CPU scheduling contention.
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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.