CompTIA Network+ (N10-007) — Question 101

A web application is unable to authenticate customers so they can access their bills. The server administrator has tested the LDAP query but is not receiving results. Which of the following is the NEXT step the server administrator should take to correct the problem?

Answer options

• A. Check port 636 to see if it is being blocked.
• B. Change service port 636 to port 389.
• C. Restart the web server.
• D. Verify the browser is using port 443.

Correct answer: A

Explanation

The correct answer is A because checking if port 636 is blocked is crucial for LDAP over SSL communication. If the port is blocked, the server won't be able to communicate with the LDAP server, resulting in failed authentication. Options B and C do not address the potential network issue, and D is unrelated to the LDAP query process.