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Which of the following is a characteristic of 802.11a that is not shared by 802.11 and 802.11b?

The 802.11a standard provides a higher bandwidth than 802.11 and 802.11b. Which of the following is a characteristic of 802.11a that is not shared by 802.11 and 802.11b?

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A.
Maximum distance that the wireless device should be from the access point is 25 feet.

B.
It uses TKIP instead of WEB.

C.
It uses the AES algorithm instead of the RC4 algorithm.

D.
It increases the keying material for encryption.

Explanation:
802.1x provides port authentication, which means that all traffic is
restricted until the user is properly authenticated. 802.1x does not have anything
to do with encryption. Extensible Access Protocol (EAP) extends the types of
authentication types.

3 Comments on “Which of the following is a characteristic of 802.11a that is not shared by 802.11 and 802.11b?

  1. Greg says:

    Should the answer be A? The explanation appears to be to a different question altogether. I assume B was supposed to say “…instead of WEP.” But 802.11b can use TKIP and WPA (AES) as well, ruling out B & C. I found the following which would suggest A as the answer:

    “The 802.11a standard offers more nonoverlapping channels per AP that clients can use: eight, vs. three for 802.11b. Since it operates at a higher frequency, though, 802.11a has a shorter range and requires more APs for a given coverage area.”




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