Question 228 of 977
CV0-004 Troubleshooting Practice Question
A cloud engineer is troubleshooting performance issues in a virtualized environment. Which of the following tools would BEST help identify CPU contention on a hypervisor?
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
✓
esxtop
'esxtop' (on VMware) provides real-time performance data including CPU ready time, which directly indicates CPU contention. Option A is incorrect because 'iperf' measures network throughput. Option C is incorrect because 'ping' tests basic connectivity. Option D is incorrect because 'nslookup' is for DNS resolution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
iperf
Why it's wrong here
Used for network bandwidth testing.
- ✓
esxtop
Why this is correct
Shows CPU metrics like ready time and co-stop.
- ✗
ping
Why it's wrong here
Tests ICMP echo, not CPU performance.
- ✗
nslookup
Why it's wrong here
Used for DNS queries.
Visual reference
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Last reviewed: Jun 24, 2026
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