Computer Support/Networking/Protocols

This lesson covers networking protocols.

Objectives and Skills

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Objectives and skills for the networking protocols portion of A+ certification include:[1]

Explain common TCP and UDP ports, protocols, and their purpose.
  • Ports
    • 21 – FTP
    • 22 – SSH
    • 23 – TELNET
    • 25 – SMTP
    • 53 – DNS
    • 80 – HTTP
    • 110 – POP3
    • 143 – IMAP
    • 443 – HTTPS
    • 3389 – RDP
    • 137-139 NetBIOS/NetBT
    • 445 – SMB/CIFS
    • 427 – SLP
    • 548 – AFP
  • Protocols
    • DHCP
    • DNS
    • LDAP
    • SNMP
    • SMB
    • CIFS
    • SSH
    • AFP
  • TCP vs. UDP

Readings

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  1. Wikipedia: File Transfer Protocol (FTP)
  2. Wikipedia: Secure Shell (SSH)
  3. Wikipedia: Telnet
  4. Wikipedia: Simple Mail Transfer Protocol (SMTP)
  5. Wikipedia: Domain Name System (DNS)
  6. Wikipedia: Hypertext Transfer Protocol (HTTP)
  7. Wikipedia: Post Office Protocol (POP3)
  8. Wikipedia: Internet Message Access Protocol (IMAP)
  9. Wikipedia: HTTPS
  10. Wikipedia: Remote Desktop Protocol (RDP)
  11. Wikipedia: NetBIOS over TCP/IP (NetBT)
  12. Wikipedia: Server Message Block (SMB)
  13. Wikipedia: Service Location Protocol (SLP)
  14. Wikipedia: Apple Filing Protocol (AFP)
  15. Wikipedia: Dynamic Host Configuration Protocol (DHCP)
  16. Wikipedia: Lightweight Directory Access Protocol (LDAP)
  17. Wikipedia: Simple Network Management Protocol (SNMP)
  18. Wikipedia: Transmission Control Protocol (TCP)
  19. Wikipedia: User Datagram Protocol (UDP)

Multimedia

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  1. YouTube: Common TCP and UDP Ports - CompTIA A+ 220-901: 2.4
  2. Packetlife.net: Common TCP and UDP Ports cheatsheet

Activities

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References

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