N10-005 · Question #653
N10-005 Question #653: Real Exam Question with Answer & Explanation
The correct answer is C: An 802.11n compatible client can connect to the wireless network only if its MAC address is. Two security controls are in place: WPA2-AES only encryption, and MAC address filtering with a specific allow list. 802.11n is backward compatible with 802.11g, so an 802.11n client can communicate with an 802.11g AP. However, both conditions must be met: the client must support
Question
Options
- AAny 802.11b/g compatible client can connect to the wireless network if they support TKIP,
- BAn 802.11a compatible client can connect to the wireless network only if its MAC address is
- CAn 802.11n compatible client can connect to the wireless network only if its MAC address is
- DAny 802.11g compatible client can connect to the wireless network if the encryption key is known
Explanation
Two security controls are in place: WPA2-AES only encryption, and MAC address filtering with a specific allow list. 802.11n is backward compatible with 802.11g, so an 802.11n client can communicate with an 802.11g AP. However, both conditions must be met: the client must support WPA2-AES encryption AND its MAC address must be in the allow list. Only the single MAC address listed (00-ab-29-da-c3-40) is permitted. 802.11b/g clients using TKIP cannot connect because the AP forces WPA2-AES only. 802.11a clients operate in the 5 GHz band and cannot connect to a 2.4 GHz 802.11g AP at all. 802.11g clients cannot connect just by knowing the key; their MAC address must also be on the allow list.
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