Question 436 of 977
CV0-004 Troubleshooting Practice Question
A cloud engineer is troubleshooting a performance issue where a web server cluster experiences high latency during peak hours. The cluster uses an auto-scaling group behind a load balancer. Which THREE steps should the engineer take to identify the root cause?
⚠ Common exam trap
Watch out — candidates often think reducing instances (Option D) is a valid troubleshooting step, but it is a remediation action that can mask the root cause and potentially crash the application under load.
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
✓
Monitor CPU and memory utilization on the web servers
High CPU or memory utilization on web servers directly indicates resource contention, which can cause increased request processing time and latency. Monitoring these metrics helps identify if the auto-scaling group is under-provisioned or if a specific instance is overloaded, guiding scaling policy adjustments.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Monitor CPU and memory utilization on the web servers
Why this is correct
High resource usage can cause slow responses.
- ✓
Analyze web server access logs for slow requests
Why this is correct
Logs can pinpoint which requests are slow and why.
- ✓
Check the load balancer's backend instance health status
Why this is correct
Unhealthy instances can cause failed requests and retries.
- ✗
Reduce the number of instances in the auto-scaling group
Why it's wrong here
Reducing instances would increase load on remaining servers, worsening latency.
- ✗
Review security group rules for the load balancer
Why it's wrong here
Security groups control access but do not directly cause latency.
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Last reviewed: Jun 11, 2026
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.
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