Chapter 12

Wireless Networking

The Following CompTIA Network+ Exam Objectives Are Covered in This Chapter:

• 3.3 Compare and contrast different wireless standards.
  • 802.11 a/b/g/n standards
• Distance
• Speed
• Latency
• Frequency
• Channels
• MIMO
• Channel bonding
• 3.7 Compare and contrast different LAN technologies.
  • Properties:
• CSMA/CA
• 2.2 Given a scenario, install and configure a wireless network.
  • WAP placement
  • Antenna types
  • Interference
  • Frequencies
  • Channels
  • Wireless standards
  • SSID (enable/disable)
  • Compatibility (802.11 a/b/g/n)
• 5.1 Given a scenario, implement appropriate wireless security measures.
  • Encryption protocols:
• WEP
• WPA
• WPA2
• WPA Enterprise
• MAC address filtering
• Device placement
• Signal strength

While you’re sipping coffee at a café or hanging out in an airport until they finally fix the plane you’re waiting to board, you are no longer limited to just reading actual papers and magazines. Now, you have the option to connect to the local wireless network and catch up on your emails, blog, do a little gaming—maybe even get some work done! It’s come to the point that many of us wouldn’t even think of checking into a hotel that doesn’t offer this important little amenity. So clearly, those of us already in or wishing to enter the IT field better have our chops down regarding wireless network components and their associated installation factors, right? (Answer: a resounding YES!)