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

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Chapter 5

Networking Devices

  • 1.2 Classify how applications, devices, and protocols relate to the OSI model layers.
    • Frames
    • Packets
    • Switch
    • Router
    • Multilayer switch
    • Hub
    • Encryption devices
    • Cable
    • NIC
    • Bridge
  • 1.4 Explain the purpose and properties of routing and switching.
    • Broadcast domain vs. collision domain
  • 1.7 Summarize DNS concepts and its components.
    • DNS servers
    • DNS records (A, MX, AAAA, CNAME, PTR)
    • Dynamic DNS
  • 2.1 Given a scenario, install and configure routers and switches.
    • Managed vs. unmanaged
    • Interface configurations
  • Full duplex
  • Half duplex
  • Port speeds
  • IP addressing
  • Traffic filtering
  • Diagnostics
  • 2.3 Explain the purpose and properties of DHCP.
    • Static vs. dynamic IP addressing
    • Reservations
    • Scopes
    • Leases
    • Options (DNS servers, ...

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