Designing Cisco Enterprise Wireless Networks (ENWLSD) — Question 164

An engineer must deploy a wireless network in an open-plan environment that has three SSIDs using the 5 GHz band and the channel width is set to 40 MHz. Co-channel interference must be reduced. Which two actions must be taken? (Choose two.)

Answer options

• A. Increase the number of SSIDs.
• B. Increase channel bonding in the 2.4 GHz band to 40 MHz.
• C. Disable band steering.
• D. Decrease channel bonding in the 5 GHz band to 20 MHz.
• E. Reduce the power of the AP.

Correct answer: D, E

Explanation

Reducing channel bonding in the 5 GHz band to 20 MHz (option D) decreases the likelihood of co-channel interference by providing more non-overlapping channels. Lowering the power of the AP (option E) can also help minimize interference, as it reduces the coverage area and potential overlap with other APs. The other options do not address co-channel interference effectively.