300-360 · Question #38
What is the recommended minimum speed at the edge of the cells in an 802.11g network for a good Cisco VoWLAN deployment?
The correct answer is C. 12 Mb/s. In a Cisco VoWLAN deployment on an 802.11g network, the recommended minimum data rate at the edge of cells is 12 Mb/s. This threshold ensures adequate bandwidth for voice quality (VoIP requires low latency and consistent throughput) while still allowing sufficient cell…
Question
What is the recommended minimum speed at the edge of the cells in an 802.11g network for a good Cisco VoWLAN deployment?
Options
- A11 Mb/s
- B36 Mb/s
- C12 Mb/s
- D18 Mb/s
How the community answered
(63 responses)- A3% (2)
- B8% (5)
- C87% (55)
- D2% (1)
Explanation
In a Cisco VoWLAN deployment on an 802.11g network, the recommended minimum data rate at the edge of cells is 12 Mb/s. This threshold ensures adequate bandwidth for voice quality (VoIP requires low latency and consistent throughput) while still allowing sufficient cell coverage. 11 Mb/s is an 802.11b rate, not an 802.11g rate. 18 Mb/s and 36 Mb/s are valid 802.11g rates but are too high to use as minimum cell-edge rates - they would unnecessarily shrink the coverage area, creating gaps. Cisco recommends disabling data rates below 12 Mb/s on 802.11g WLANs used for voice to improve call quality and reduce overhead from low-rate transmissions.
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