Question 801 of 977
CV0-004 Troubleshooting Practice Question
A cloud administrator is troubleshooting a performance issue where users report slow access to a web application hosted in a public cloud. The application uses an auto-scaling group of web servers behind a load balancer. The administrator notices that the CPU utilization on the web servers is low, but the load balancer metrics show a high number of pending requests. What is the most likely cause?
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 load balancer health checks are misconfigured, causing healthy instances to be removed.
Misconfigured health checks can cause the load balancer to incorrectly mark healthy instances as unhealthy and remove them from the target group. This results in fewer instances handling traffic, leading to a buildup of pending requests even though the remaining instances have low CPU utilization. Option A is incorrect because API rate limiting would affect API calls, not HTTP traffic to the web servers. Option B is incorrect because an incorrect DNS IP would prevent users from reaching the application entirely, not cause pending requests. Option C is incorrect because blocking inbound traffic on port 80 would cause connection timeouts or failures, not a high number of pending requests.
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 web servers are throttled by the cloud provider's API rate limiting.
Why it's wrong here
API rate limiting affects API calls, not web traffic.
- ✗
The DNS records point to an incorrect IP address.
Why it's wrong here
DNS would cause total inaccessibility, not just slowness.
- ✗
The security group is blocking inbound traffic on port 80.
Why it's wrong here
Blocking port 80 would cause connection failures, not pending requests.
- ✓
The load balancer health checks are misconfigured, causing healthy instances to be removed.
Why this is correct
Misconfigured health checks can cause the load balancer to stop sending traffic to healthy instances, leading to pending requests.
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Last reviewed: Jun 24, 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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