The remote support team at an organization is having problems connecting to their client's computers using a remote desktop connection. All other network services are working fine. Which of the following could be a possible reason for this?
A)The DHCP server is down.
B)The NIC is faulty.
C)The DNS server is down.
D)The firewall has blocked port 3389.

Question

Quizplus · Accepted Answer

Microsoft Remote Desktop Protocol, or RDP, operates on port 3389. Port 3389 is not generally open by default on most firewalls.
Key Takeaway: RDP is the protocol used for Microsoft's Remote Desktop and operates on IP port 3389. RDP is secure because it encrypts the data in transfers once the user has logged into the session. This makes it fairly unsusceptible to man in the middle attacks, and further makes the use of SSL or TLS superfluous for remote access to a Windows desktop.

The Remote Support Team at an Organization Is Having Problems