An administrator receives a call from a user reporting that one of the application servers is not accessible by host name but is accessible via an IP address. Which of the following is the MOST likely issue?
A) The DNS reverse lookup zone is misconfigured.
B) The DNS MX record type is misconfigured.
C) The DNS resource record is missing.
D) The DNS forward lookup zone is missing.

Question

Quizplus · Accepted Answer

The issue is likely due to a missing DNS resource record, which would prevent the server from being accessible by its hostname. The forward lookup zone is responsible for resolving hostnames to IP addresses, so a missing resource record in this zone would cause the described problem.

An Administrator Receives a Call from a User Reporting That