CV0-004 Troubleshooting Practice Question
A company is experiencing intermittent network connectivity issues between two cloud subnets. The cloud provider's monitoring shows no packet loss. Which troubleshooting step should be taken first?
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 security group rules for both subnets
Security group rules can cause intermittent connectivity issues by selectively dropping traffic based on stateful inspection, timeouts, or misconfigured rules. Option B is wrong because virtual routers are typically managed by the provider and are unlikely to cause intermittent issues without alerts. Option C is wrong because increasing bandwidth does not address the underlying cause of intermittent drops. Option D is wrong because physical cabling is not relevant in the cloud.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Review the security group rules for both subnets
Why this is correct
Incorrect security group rules can block traffic between subnets intermittently based on timing or state.
- ✗
Replace the virtual routers
Why it's wrong here
Virtual routers are abstracted in the cloud and replacement is not a typical first step.
- ✗
Increase the bandwidth between subnets
Why it's wrong here
Bandwidth increase would not resolve intermittent connectivity caused by firewall rules.
- ✗
Check the physical cabling
Why it's wrong here
Physical cabling is not visible or manageable in a cloud environment.
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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.