Computer Support/Hardware Troubleshooting/Networks

< Computer Support < Hardware Troubleshooting

This lesson covers troubleshooting networks.

Objectives and Skills

Objectives and skills for the troubleshooting networks portion of A+ certification include:[1]

Given a scenario, troubleshoot wired and wireless networks with appropriate tools.
  • Common symptoms
    • No connectivity
    • APIPA/link local address
    • Limited connectivity
    • Local connectivity
    • Intermittent connectivity
    • IP conflict
    • Slow transfer speeds
    • Low RF signal
    • SSID not found
  • Hardware tools
    • Cable tester
    • Loopback plug
    • Punch down tools
    • Tone generator and probe
    • Wire strippers
    • Crimper
    • Wireless locator
  • Command line tools
    • PING
    • IPCONFIG/IFCONFIG
    • TRACERT
    • NETSTAT
    • NBTSTAT
    • NET
    • NETDOM
    • NSLOOKUP

Readings

  1. Read Wikipedia: Cable tester
  2. Read Wikipedia: Punch down tool
  3. Read Wikipedia: Signal generator
  4. Read Wikipedia: Wire stripper
  5. Read Wikipedia: Crimp connection

Multimedia

  1. Watch YouTube: Troubleshooting Networks - CompTIA A+ 220-901 - 4.4.
  2. Watch YouTube: Network Troubleshooting Tools - CompTIA A+ 220-901 - 4.4.
  3. Watch YouTube: Network Troubleshooting at the Command Line - CompTIA A+ 220-901 - 4.4.

References

  1. ↑ CompTIA: A+ Certification Exam Objectives - Exam 220-901
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