CompTIA
CV0-003 · Question #284
CV0-003 Question #284: Real Exam Question with Answer & Explanation
The correct answer is D: Evaluate the DNS to ensure all configurations are correct.. Intermittent global access with no reported outages or resource issues most commonly points to DNS misconfiguration affecting hostname resolution for users worldwide.
Troubleshooting
Question
Worldwide users from an organization are experiencing intermittent access to a global cloud application. The cloud provider availability dashboard shows all resource availability has been 100% in the last two weeks. No network outages have been reported. Which of the following should the organization's administrator do BEFORE calling the cloud provider?
Options
- ACheck the firewall rules on the headquarters site.
- BRestart the application and applicable services.
- CAllow all traffic at the cloud provider side from any private IP address.
- DEvaluate the DNS to ensure all configurations are correct.
Explanation
Intermittent global access with no reported outages or resource issues most commonly points to DNS misconfiguration affecting hostname resolution for users worldwide.
Common mistakes.
- A. Firewall rules at headquarters would only affect users at that site, not worldwide users experiencing intermittent failures.
- B. Restarting the application is premature and treats a symptom rather than identifying a root cause, especially when provider resources show 100% availability.
- C. Allowing all traffic from any private IP is a security risk and irrelevant because no network outage has been reported and private IPs do not cross the public internet.
Concept tested. DNS troubleshooting for global cloud application access
Reference. https://learn.microsoft.com/en-us/azure/dns/dns-troubleshoot
Topics
#DNS configuration#intermittent access#cloud availability#troubleshooting methodology
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