CV0-004 Troubleshooting Practice Question
An organization is migrating workloads to the cloud and after migration, users complain about slow application response times. The administrator reviews the cloud provider's dashboard and sees no resource bottlenecks. Which three factors could still cause poor performance? (Choose three.)
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
✓
DNS resolution delays due to on-premises DNS server
Correct options are B, C, and E. Option B is correct because DNS resolution delays caused by an on-premises DNS server can increase response times without appearing as a resource bottleneck on the cloud provider's dashboard. Option C is correct because geographic latency between the cloud region and the users' location is a network issue, not a resource bottleneck, so it won't show on the dashboard. Option E is correct because a TCP window scaling mismatch can degrade network throughput transparently, without affecting resource metrics. Option A is incorrect because an application not optimized for the cloud would typically cause high resource usage, which would appear as a bottleneck on the dashboard. Option D is incorrect because insufficient CPU cores would result in high CPU utilization, visible as a resource bottleneck on the dashboard.
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 application is not optimized for the cloud infrastructure
Why it's wrong here
Lack of optimization typically leads to high resource usage, which would appear as a bottleneck.
- ✓
DNS resolution delays due to on-premises DNS server
Why this is correct
Slow DNS resolution increases latency without taxing cloud resources.
- ✓
High latency between the cloud region and the users' location
Why this is correct
Geographic latency increases response time but does not consume cloud resources.
- ✗
Insufficient number of CPU cores in the VM
Why it's wrong here
Insufficient CPU would show as high CPU utilization on the dashboard.
- ✓
TCP window scaling mismatch
Why this is correct
Window scaling issues reduce throughput without triggering resource alerts.
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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.