Computer Networks/Introduction

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This lesson introduces computer networks.

Objectives and Skills[edit]

Objectives and skills for the introduction portion of Network+ certification include:[1]

  • Differentiate between common network topologies
    • Bus
    • Star
    • Ring
    • Mesh
      • Partial
      • Full
    • Hybrid
    • Point-to-point
    • Point-to-multipoint
    • Client-server
    • Peer-to-peer
  • Differentiate between network infrastructure implementations
    • LAN
    • WAN
    • MAN
    • WLAN
      • Hotspot
    • PAN
      • Bluetooth
      • IR
      • NFC
    • SCADA/ICS
      • ICS server
      • DCS/closed network
      • Remote terminal unit
      • Programmable logic controller
    • Medianets
      • VTC
        • ISDN
        • IP/SIP

Readings[edit]

  1. Wikipedia: Computer network
  2. Wikipedia: Network topology
  3. Wikipedia: Client–server model
  4. Wikipedia: Peer-to-peer
  5. Wikipedia: Wide area network
  6. Wikipedia: Metropolitan area network
  7. Wikipedia: Local area network
  8. Wikipedia: Wireless LAN
  9. Wikipedia: Personal area network
  10. Wikipedia: Industrial control system
  11. Wikipedia: SCADA
  12. Wikipedia: Videoconferencing

Multimedia[edit]

  1. YouTube: Common Network Topologies - CompTIA Network+ N10-006 - 1.6
  2. YouTube: Network Infrastructures - CompTIA Network+ N10-006 - 1.7

Activities[edit]

  1. Review Wikipedia: Computer network#Geographic scale and Wikipedia: Network topology. Consider the different networks you use on a regular basis, including home, school, work, or mobile / cellular networks. Classify each of the networks according to geographic scale as a PAN, LAN, WLAN, MAN, or WAN. Which topologies are in use on these networks? How does the media selected for these networks influence the topology?
  2. Review archive.org: Microsoft: What is the Difference Between a Domain, a Workgroup, and a Homegroup. Compare and contrast different methods of sharing and storage between a domain, workgroup, and homegroup.
  3. Establish a peer-to-peer network by sharing a folder and then connect to the shared folder:
  4. Investigate whether your school or organization uses "media nets" for voice or video conferencing, and whether any industrial control systems are in place to manage or monitor utilities such as electricity, heat, air conditioning, water, equipment, facilities access, etc.

Lesson Summary[edit]

Key Terms[edit]

bus
client
LAN
MAN
mesh
PAN
peer
point-to-multipoint
point-to-point
ring
server
star
WAN
WLAN

See Also[edit]

References[edit]