Chapter 1. Domain 1 Network Technologies

CompTIA Network+ exam objectives covered in this chapter:

  • 1.1 Explain the function of common networking protocols

    • TCP

    • FTP

    • UDP

    • TCP/IP suite

    • DHCP

    • TFTP

    • DNS

    • HTTP(S)

    • ARP

    • SIP (VoIP)

    • RTP (VoIP)

    • SSH

    • POP3

    • NTP

    • IMAP4

    • TELNET

    • SMTP

    • SMNPv2/3

    • ICMP

    • IGMP

    • TLS

  • 1.2 Identify commonly used TCP and UDP default ports

    • TCP ports

    • FTP – 20, 21

    • SSH – 22

    • TELNET – 23

    • SMTP – 25

    • DNS – 53

    • HTTP – 80

    • POP3 – 110

    • NTP – 123

    • IMAP4 – 143

    • HTTPS – 443

    • UDP ports

    • TFTP – 69

    • DNS – 53

    • BOOTPS/DHCP – 67

    • SNMP – 161

  • 1.3 Identify the following address formats

    • IPv6

    • IPv4

    • MAC addressing

  • 1.4 Given a scenario, evaluate the proper use of the following addressing technologies and addressing schemes

    • Subnetting

    • Classful vs. classless (e.g., CIDR, Supernetting)

    • NAT

    • PAT

    • SNAT

    • Public vs. Private

    • DHCP (static, dynamic, ...

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