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CompTIA® Network+® Study Guide, Second Edition by Todd Lammle

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Chapter 6

Introduction to the Internet Protocol

The Following CompTIA Network+ Exam Objectives Are Covered in This Chapter:

  • 1.1 Compare the layers of the OSI and TCP/IP models.
    • TCP/IP model:
  • Network Interface Layer
  • Internet Layer
  • Transport Layer
  • Application Layer
  • (Also described as: Link Layer, Internet Layer, Transport Layer, Application Layer)
  • 1.5 Identify common TCP and UDP default ports.
    • SMTP – 25
    • HTTP – 80
    • HTTPS – 443
    • FTP – 20, 21
    • TELNET – 23
    • IMAP – 143
    • RDP – 3389
    • SSH – 22
    • DNS – 53
    • DHCP – 67, 68
  • 1.6 Explain the function of common networking protocols.
    • TCP
    • FTP
    • UDP
    • TCP/IP suite
    • DHCP
    • TFTP
    • DNS
    • HTTPS
    • HTTP
    • ARP
    • SIP (VoIP)
    • RTP (VoIP)
    • SSH
    • POP3
    • NTP
    • IMAP4
    • Telnet
    • SMTP
    • SNMP2/3
    • ICMP
    • IGMP
    • TLS

The Transmission Control Protocol/Internet Protocol ...

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