The network administrator just upgraded all of the WAPs to new ones with 2.4 GHz b/g/n support.
The new WAPs reuse the same location and channel as the previous one and with no new external
interference detected. However, performance issues are now occurring that did not exist before.
Which of the following would correct the issue?
A.
Configure Wi-Fi Multimedia support
B.
Use only 20 MHz channel bandwidth
C.
Enable band steering to use 802.11n
D.
Configure Quality of Service
I think this is referring to making sure there that the WAPs are using channel 1,6 and 11 which would ensure no overlapping. Channels 1,6 and 11 are within the 20MHz channel bandwidth.
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And 802.11 has been 22MHZ channel bandwidth
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Sorry forgot And 802.11″b” has been 22MHZ channel bandwidth
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I think answer is A. Configure Wi-Fi Multimedia support
Wi-Fi Multimedia provides basic QoS and prioritizes traffic according to four Access Categories.
https://en.wikipedia.org/wiki/Wireless_Multimedia_Extensions
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You are upgrading to n, which uses channel bonding to achieve higher data rates. However, channel bonding only scales well in 5GHz. In 3 channel architecture in 2.4GHz, 40MHz channels will interfere with their neighboring cells. 20MHz channels coexist more easily when using 3 channels.
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