easyMultiple ChoiceObjective-mapped
CV0-004 Practice Question: A cloud administrator notices that a web…
A cloud administrator notices that a web application is experiencing intermittent latency spikes. The application runs on a load-balanced set of virtual machines in a public cloud. Which of the following should the administrator investigate FIRST?
⚠ Common exam trap
CompTIA often tests the principle of starting with the most direct evidence (application logs) rather than jumping to network or infrastructure checks, trapping candidates who assume latency must be a network issue.
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
✓
Review the application logs for errors or performance issues.
Intermittent latency spikes in a load-balanced web application are most effectively diagnosed by first reviewing application logs for errors or performance issues. Application logs can reveal slow database queries, memory exhaustion, or code-level bottlenecks that cause latency, which is the most direct source of evidence before investigating network or infrastructure components.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Verify that the VMs are in the same availability zone.
Why it's wrong here
VMs in different zones can add cross-zone latency, but this is a design issue, not an intermittent spike cause.
- ✗
Inspect the network ACLs for any recent changes.
Why it's wrong here
Network ACLs control traffic flow but rarely cause intermittent latency spikes unless misconfigured.
- ✗
Check the load balancer health checks to ensure all instances are healthy.
Why it's wrong here
Health checks verify if instances are up, but latency spikes are not typically caused by health check failures.
- ✓
Review the application logs for errors or performance issues.
Why this is correct
Application logs can reveal slow queries, resource contention, or code errors that cause intermittent latency.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.