A customer has requested a solution using multiple WAPs for wireless access. Which of the
following should be different on each WAP to prevent wireless problems?

A.
Firewalls

B.
VLANs

C.
Channels

D.
Antenna types

Explanation:
Protocol requires 16.25 to 22 MHz of channel separation (as shown above), adjacent channels
overlap and will interfere with each other.
Channels 1, 6, and 11 are the most common channels to choose, and most routers will use one of
them as the default channel—but the general idea is to be as far away from everybody else as you
can.