Which type of interference occurs when two APs are configured on channel 7 and channel...

When two access points operate on overlapping channels in the same frequency band—such as channel 7 and channel 8 in the 2.4 GHz range—they create Adjacent Channel Interference (ACI) . Unlike co-channel interference (CCI) , which occurs when APs share the exact same channel, ACI results from partial channel overlap that causes energy spillover between adjacent frequencies.

According to RUCKUS One Online Help – Radio Configuration and Channel Planning , adjacent channels in 2.4 GHz are only 5 MHz apart, while each Wi-Fi channel occupies 20–22 MHz of bandwidth. As a result, channels like 7 and 8 significantly overlap, creating degraded performance, retransmissions, and reduced throughput.

RUCKUS’s ChannelFly technology in both RUCKUS AI and RUCKUS Analytics helps automatically select non-overlapping channels (such as 1, 6, and 11) to minimize ACI and optimize network capacity.

Therefore, the correct answer is A – Adjacent interference , which directly applies to overlapping channel configurations.