What must be considered when using 802:11 ta?


Cisco 200-301 Exam

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Question 468
What must be considered when using 802:11 ta?






FilipBaricevic1996 - 1 year, 300 days ago

Correct answer should be B,

Explanation :  802.11a and 802.11b are not compatible since 802.11a operates at the 5GHz frequency band and 802.11b operates at the 2.4GHz band. The 2.4 GHz frequency band with a channel width of 22 MHz only has 3 non-overlapping channels (1, 6 and 11) whereas the 5 GHz band has 23 non-overlapping channels with a 20 MHz channel width. Therefore, 802.11a is preferred over 802.11b and 802.11g when many non-overlapping channels are required since they both operate at 2.4GHz unlike 802.11a.

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