CCENT Exam Cram (Exam 640-822)

Chapter 8. Wireless LANs

Terms You’ll Need to Understand

• ISM and U-NII
• Wi-Fi, 802.11, 802.11a, 802.11b, 802.11g
• Ad-Hoc mode and Infrastructure mode
• BSS and ESS
• FHSS, DSSS and OFDM
• SSID
• Authentication, Encryption, and Intrusion
• WEP, EAP, WPA and WPA2/802.11i

Concepts and Techniques You’ll Need to Master

• Identify the differences between wireless LAN standards
• Describe the differences between WLAN modes
• Identify the differences between BSS and ESS
• Identify security threats specific to WLANs and techniques to mitigate them
• Identify the four WLAN security implementations, their operation, strengths, and weaknesses
• Identify the basic configuration steps for installing and using a wireless access point

Introduction

This chapter introduces Wireless LAN ...