An engineer has added an access point to a deployment after a post-installation site survey. The engineer then notices that there has been an increase in co-channel interference and retransmissions…

The correct answer is C. Enhanced Distributed Channel Access E. Dynamic Channel Assignment. Dynamic Channel Assignment (E, DCA) is a Cisco Radio Resource Management (RRM) feature that automatically reassigns channels across APs to minimize co-channel interference, directly addressing the problem caused by adding a new AP. Enhanced Distributed Channel Access (C, EDCA)…

Wireless Troubleshooting

Question

An engineer has added an access point to a deployment after a post-installation site survey. The engineer then notices that there has been an increase in co-channel interference and retransmissions. Which two features can help mitigate the issue? (Choose two.)

Options

ACoverage Hole Detection
BTransmit Power Control
CEnhanced Distributed Channel Access
DCisco Compatible Extensions
EDynamic Channel Assignment

How the community answered

(55 responses)

A
2% (1)
B
5% (3)
C
84% (46)
D
9% (5)

Explanation

Dynamic Channel Assignment (E, DCA) is a Cisco Radio Resource Management (RRM) feature that automatically reassigns channels across APs to minimize co-channel interference, directly addressing the problem caused by adding a new AP. Enhanced Distributed Channel Access (C, EDCA), part of 802.11e/WMM, improves how devices contend for the wireless medium, reducing collisions and retransmissions through differentiated access categories. Coverage Hole Detection (A) identifies weak signal areas but does not address interference. Transmit Power Control (B, TPC) adjusts power levels but by itself does not resolve channel conflicts. Cisco Compatible Extensions (D) is a client interoperability feature unrelated to interference mitigation.

Topics

#co-channel interference#Dynamic Channel Assignment#EDCA#RRM

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