Which statement about the beamforming (ClientLink) feature on the Cisco WLC is true?
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A. B. C. D.C.
Beamforming is a feature that is used to improve the signal quality and range of wireless transmissions in a wireless network. It is a technology that enables a wireless access point (AP) to improve the quality of the signal sent to a wireless client by focusing the signal in a particular direction.
In the context of Cisco Wireless LAN Controllers (WLCs), the beamforming feature is called ClientLink. This feature is used to improve the signal quality and range of wireless transmissions between Cisco APs and wireless clients.
Regarding the options provided in the question:
A. It works only with 802.11n APs and clients. This statement is not entirely true. While it is true that the beamforming feature is most commonly associated with 802.11n wireless technology, it can also work with other wireless standards such as 802.11ac and 802.11ax.
B. It works only with 802.11n APs and 802.11b/g clients. This statement is not true. ClientLink works with 802.11n and newer standards, but not with 802.11b/g. 802.11b/g devices don't support beamforming.
C. It provides a signal gain when the AP transmits towards the client. This statement is true. The ClientLink feature provides a signal gain by using directional antenna arrays in the AP to focus the signal towards the wireless client.
D. It provides a signal gain in both directions (AP to client and client to AP). This statement is not entirely true. While the beamforming feature can improve the signal quality in both directions, the ClientLink feature, specifically, provides a signal gain only in the AP to client direction.
In conclusion, the correct answer to the question is C. ClientLink provides a signal gain when the AP transmits towards the client.