Question 152 of 977
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CV0-004 Practice Question: A cloud administrator is troubleshooting a…
A cloud administrator is troubleshooting a performance issue in a virtualized environment. Which TWO metrics should the administrator monitor to identify CPU contention? (Choose two.)
⚠ Common exam trap
Watch out — candidates often confuse CPU usage percentage with CPU contention, but usage measures consumption while ready time and co-stop time directly measure waiting caused by resource competition.
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
✓
CPU ready time
CPU ready time (B) measures the time a virtual CPU is ready to run but is waiting for the physical CPU to become available, directly indicating contention for CPU resources. CPU co-stop time (C) occurs when a virtual machine with multiple vCPUs has one vCPU ready to run but is forced to wait because its sibling vCPUs are not scheduled simultaneously, which is a specific form of CPU contention in SMP configurations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
CPU usage percentage
Why it's wrong here
Usage percentage shows how much CPU is used, not whether the VM is waiting.
- ✓
CPU ready time
Why this is correct
High ready time indicates the VM is waiting for CPU cycles due to contention.
- ✓
CPU co-stop time
Why this is correct
Co-stop time measures time spent by vCPUs waiting due to simultaneous scheduling conflicts, indicating contention.
- ✗
CPU frequency
Why it's wrong here
Frequency is a hardware property, not a contention metric.
- ✗
CPU load average
Why it's wrong here
Load average indicates queue length but is not a direct hypervisor contention metric.
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Last reviewed: Jul 4, 2026
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