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8 Cards in this Set

  • Front
  • Back
What 2 types of antennas are used in WLANs?
1. Omni Direction - transmits in all directions
2. Directional - transmits in only one direction
What is DCF and PCF?
1. Distributed Coordination Function - listen before transmit (stop and wait ARQ)
2. Point Coordination Function - (virtual carrier sense method) (uses RTS and CTS signals)
What's the name of a bluetooth network?
Piconet
What does bluetooth use for data transmission?
Frequency Shift Keying (FSK)
What is the effective rate under perfect conditions for 802.11b for 1 user? for 10 users?
9.6 Mbps, 960 Kbps
What is the effective rate under perfect conditions for 802.11a and 802.11g for 1 user? for 10 users?
34.4 Mbps, 3.4 Mbps
What are 4 types of WLAN Security?
1. Service Set Identifier (SSID)
2. Wired Equivalent Privacy (WEP)
3. Extensible Authentication protocol (EAP)
4. Wi-Fi protected Access (WPA)
What are 3 ways to improve WLAN performance?
1. Improving device performance
2. Improving wireless circuit capacity
3. Reducing network demand