CompTIA Server+ (SK0-005) — Question 78

A systems administrator is setting up a new server that will be used as a DHCP server. The administrator installs the OS but is then unable to log on using Active
Directory credentials. The administrator logs on using the local administrator account and verifies the server has the correct IP address, subnet mask, and default gateway. The administrator then gets on another server and can ping the new server. Which of the following is causing the issue?

Answer options

• A. Port 443 is not open on the firewall
• B. The server is experiencing a downstream failure
• C. The local hosts file is blank
• D. The server is not joined to the domain

Correct answer: D

Explanation

The correct answer is D because the server needs to be joined to the domain in order for Active Directory credentials to be used for login. The other options do not directly affect the ability to log in using Active Directory; for example, port 443 being closed, a downstream failure, or a blank hosts file would not prevent domain authentication.