This CV0-004 practice question tests your understanding of operations and support. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses a hybrid cloud model and experiences intermittent connectivity issues between the on-premises network and the public cloud VPC. The administrator has verified that the VPN connection is established. Which of the following should the administrator check next?
Firewall rules for outbound traffic.
Why wrong: Outbound rules would affect all traffic, not just intermittent.
Public IP address of the VPN gateway.
Why wrong: The public IP is static and unlikely to change.
Routing tables on both sides.
Incorrect routes can lead to intermittent packet loss or misrouting.
DNS resolution of cloud endpoints.
Why wrong: DNS would cause consistent failure, not intermittent.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Routing tables on both sides.
Since the VPN connection is established (tunnel is up), the issue is likely with traffic routing rather than basic connectivity. Routing tables on both the on-premises router and the cloud VPC must have correct routes pointing to the VPN gateway and the remote subnets; a missing or misconfigured route (e.g., a missing static route or incorrect VPC route table entry) will cause intermittent connectivity even when the VPN tunnel itself is active.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Firewall rules for outbound traffic.
Why it's wrong here
Outbound rules would affect all traffic, not just intermittent.
Public IP address of the VPN gateway.
Why it's wrong here
The public IP is static and unlikely to change.
Routing tables on both sides.
Why this is correct
Incorrect routes can lead to intermittent packet loss or misrouting.
Related concept
Read the scenario before looking for a memorised answer.
DNS resolution of cloud endpoints.
Why it's wrong here
DNS would cause consistent failure, not intermittent.
Common exam traps
The trap here is that candidates assume an established VPN tunnel guarantees end-to-end connectivity, but CompTIA often tests that routing misconfigurations (e.g., missing static routes or incorrect VPC route propagation) are the most common cause of intermittent connectivity when the tunnel is up.
Detailed technical explanation
In a site-to-site VPN, the VPN tunnel operates at Layer 3, but routing tables control the forwarding of packets into the tunnel interface. For example, on AWS, a VPC route table must have a route pointing to the virtual private gateway for the on-premises CIDR, and the on-premises router must have a route pointing to the VPN gateway for the VPC CIDR. A missing route causes packets to be dropped or sent over the internet instead of the tunnel, leading to intermittent connectivity that can appear as a VPN issue. Tools like `traceroute` or `show ip route` on both sides can quickly reveal missing routes.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Operations and Support — study guide chapter
Learn the concepts, then practise the questions
Operations and Support practice questions
Targeted practice on this topic area only
All CV0-004 questions
499 questions across all exam domains
CompTIA Cloud+ CV0-004 study guide
Full concept coverage aligned to exam objectives
CV0-004 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise CV0-004 questions linked to Operations and Support.
Practise CV0-004 questions linked to Cloud Architecture and Design.
Practise CV0-004 questions linked to Security.
Practise CV0-004 questions linked to Deployment.
Practise CV0-004 questions linked to Troubleshooting.
Practise CV0-004 questions linked to CV0-004 fundamentals.
Practise CV0-004 questions linked to CV0-004 scenario.
Practise CV0-004 questions linked to CV0-004 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Operations and Support — This question tests Operations and Support — Read the scenario before looking for a memorised answer..
The correct answer is: Routing tables on both sides. — Since the VPN connection is established (tunnel is up), the issue is likely with traffic routing rather than basic connectivity. Routing tables on both the on-premises router and the cloud VPC must have correct routes pointing to the VPN gateway and the remote subnets; a missing or misconfigured route (e.g., a missing static route or incorrect VPC route table entry) will cause intermittent connectivity even when the VPN tunnel itself is active.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
Last reviewed: Jun 30, 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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.