VCP-DCV vSphere Performance and Scaling Practice Question
Exhibit
Refer to the exhibit. CPU section from esxtop: %CPU %MEM %RDY %MLMTD %SWPWT - %VMWAIT 12.5 8.0 2.3 0.0 0.0 0.2 22.1 15.0 15.5 0.0 0.1 0.3 5.0 4.0 0.5 0.0 0.0 0.1 45.0 20.0 30.0 0.0 0.5 0.4
Based on the exhibit, which VM (indicated by the row) is most likely experiencing severe CPU scheduling contention?
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 VM with %RDY = 30.0
The row with the highest %RDY (30.0) indicates the VM is spending a large percentage of time ready to run but not being scheduled, which is a sign of severe CPU contention. The other rows have lower %RDY values.
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 VM with %RDY = 2.3
Why it's wrong here
A %RDY of 2.3 is a low, normal ready time, so this VM is not experiencing meaningful CPU scheduling contention. It is tempting because it is higher than the 0.5 row, and it would be the answer if the exhibit contained no row with a clearly elevated value.
- ✓
The VM with %RDY = 30.0
Why this is correct
%RDY measures the percentage of time a VM was ready to run but waited for a physical CPU. A sustained value of 30.0 far exceeds the roughly 5% threshold, indicating the VM is repeatedly delayed by scheduler contention on overcommitted cores.
- ✗
The VM with %RDY = 15.5
Why it's wrong here
A %RDY of 15.5 indicates the VM waited roughly 15.5% of its scheduled time for physical CPU, which is elevated but not the exhibit's worst contention. It is tempting because any noticeable ready time looks alarming, and it would be the answer if no row showed a substantially higher value.
- ✗
The VM with %RDY = 0.5
Why it's wrong here
A %RDY of 0.5 shows the VM was almost never ready-but-waiting, indicating healthy CPU scheduling with negligible contention. It is tempting because low numbers can be misread as suspicious, and it would be the correct row when identifying a VM with no scheduling pressure at all.
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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.