Which two wireless design principles help mitigate co-channel interference? (Choose two.)

Directional antennas shape coverage but do not change the channel assignment, so co-channel interference can still occur if neighboring APs share the same channel.

Increasing transmit power expands cell size and worsens co-channel interference by causing more APs to hear each other on the same channel.

Using non-overlapping channels (e.g., 1, 6, 11 in 2.4 GHz) ensures adjacent APs do not compete for the same frequency space, directly eliminating co-channel interference at the planning level.

Placing APs too close together increases co-channel interference by putting high-power transmitters in physical proximity on the same channel.

Lowering AP transmit power reduces the effective cell radius so that APs on the same channel have less geographic overlap, shrinking the interference zone between co-channel neighbors.