Which two statements about the CleanAir and AP modes are true? (Choose two.)
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A. B. C. D. E.BC.
CleanAir is a technology developed by Cisco that enables wireless access points (APs) to identify and mitigate sources of RF interference in real-time. There are two modes in which CleanAir can be configured on an AP - local mode and monitor mode. Here are the explanations for the given options:
A. The CleanAir chipset on local mode APs can scan all channels simultaneously. This statement is true. In local mode, the CleanAir chipset on the AP can scan all channels simultaneously, enabling the AP to detect all sources of interference that might be present.
B. The CleanAir chipset on local mode APs scans only the current channel and only when the AP is silent. This statement is false. In local mode, the CleanAir chipset on the AP can scan all channels simultaneously, and it does not need to be silent to do so.
C. Monitor mode AP interferer reports cannot be merged unless you have a Cisco MS. This statement is true. In monitor mode, the AP can identify sources of interference, but it cannot mitigate them. The reports from multiple monitor mode APs can be merged only if you have a Cisco Mobility Services Engine (MSE).
D. Monitor mode APs have no advantage over local mode APs for CleanAir. This statement is false. Monitor mode APs are dedicated to scanning the spectrum and detecting sources of interference, whereas local mode APs focus on providing wireless connectivity. Therefore, monitor mode APs have an advantage over local mode APs when it comes to CleanAir.
E. Enhanced local mode (wIPS) allows the CleanAir chipset to scan all channels. This statement is true. Enhanced local mode, also known as wireless intrusion prevention system (wIPS), is a feature that allows the AP to detect rogue APs and other unauthorized wireless devices. In addition to this, it also enables the CleanAir chipset on the AP to scan all channels simultaneously.
In summary, statements A and E are true, while statements B, C, and D are false.