They’ll be replaced with 400 more

Which of these ports would you need to open in your firewall to allow Remote Desktop connections?

A) udp/3389

B) tcp/443

C) udp/53

D) tcp/3389

E) If I open all of the ports, I can close about 40 tickets

The answer: D) tcp/3389

Microsoft Remote Desktop protocol uses port 3389 running over TCP.

Want to know more? Watch “Common TCP and UDP Ports.”

TCP and UDP are the primary transport protocols used in today’s modern networks. In this videos, you’ll get an operational overview of the TCP and UDP protocols, and you’ll learn the TCP and UDP ports that will be important to know for your CompTIA A+ exam.