Course details

CompTIA A+ 220-1001: TCP and UDP ports

CompTIA A+ 220-1001: TCP and UDP ports

Expected Duration
Lesson Objectives
Course Number
Expertise Level


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.

Expected Duration (hours)

Lesson Objectives

CompTIA A+ 220-1001: TCP and UDP ports

  • differentiate between TCP and UDP
  • describe ports 21, 22, and 23
  • describe ports 25, 110, and 143
  • describe ports 80 and 443
  • describe ports 53 and 67/68
  • describe port 3389
  • describe ports 137 and 139
  • describe port 445
  • describe port 427
  • describe port 548
  • describe port 389
  • describe port 161/162
  • work with well-known ports
  • Course Number:

    Expertise Level