Explore common TCP and UDP ports, protocols, and their purpose. In this course, learn to tell the difference between TCP and UDP. Learn usage of well-known communication ports for FTP, SSH, Telnet, e-mail, HTTP, HTTPS, DNS, DHCP, RDP, NetBIOS/NetBT, SMB, CIFS, SLP, AFP, LDAP, and SNDP. As an exercise, you will learn how to describe features of FTP, list the ports used for both sending and receiving an e-mail transmission, and describe the benefits of DHCP.