Chapter 1

Domain 1 Network Technologies

COMPTIA NETWORK+ EXAM OBJECTIVES COVERED IN THIS CHAPTER:

  • 1.1 Compare the layers of the OSI and TCP/IP models OSI model:
    • Layer 1 – Physical
    • Layer 2 – Data Link
    • Layer 3 – Network
    • Layer 4 – Transport
    • Layer 5 – Session
    • Layer 6 – Presentation
    • Layer 7 – Application
    • TCP/IP model:
    • Network Interface Layer
    • Internet Layer
    • Transport Layer
    • Application Layer
  • 1.2 Classify how applications, devices, and protocols relate to the OSI model layers.
    • MAC address
    • IP Address
    • EUI-64
    • Frames
    • Packets
    • Switch
    • Router
    • Multilayer switch
    • Hub
    • Encryption devices
    • Cable
    • NIC
    • Bridge
  • 1.3 Explain the purpose and properties of IP addressing.
    • Classes of addresses
      • A, B, C, and D
      • Public vs. private
    • Classless (CIDR)
    • IPv4 vs. IPv6 (formatting) ...

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