All night long

What type of service is commonly used on TCP port 110?

A) Web browsing

B) Network management

C) Remote access

D) Email

E) House music

The answer: D) Email

TCP port 110 is commonly used by POP3, the Post Office Protocol.

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.