CompTIA Server+ (SK0-005) — Question 228

A server administrator deployed a new product that uses a non-standard port for web access on port 8443. However, users are unable to access the new application. The server administrator checks firewall rules and determines 8443 is allowed. Which of the following is most likely the cause of the issue?

Answer options

• A. Intrusion detection is blocking the port.
• B. The new application's DNS entry is incorrect.
• C. The application should be changed to use port 443.
• D. The core switch has a network issue.

Correct answer: B

Explanation

The correct answer is B because if the DNS entry for the new application is incorrect, users would not be able to resolve the domain name to the correct IP address, preventing access. Options A, C, and D do not directly address the issue of user access being dependent on a correctly configured DNS entry.