Which two WLAN design practices are recommended when adding coverage cells? (Choose two.)
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Correct answer: 5 GHz provides higher capacity with up to 23 nonoverlapping channels, Overlapping cells should be configured to use nonoverlapping channels.
Why this is the answer
5 GHz provides higher capacity and more non-overlapping channels (up to 23 in some regions, depending on DFS requirements) compared to 2.4 GHz (which typically has only 3 non-overlapping channels: 1, 6, 11). This makes 5 GHz ideal for high-density environments and adding coverage cells without interference. Overlapping cells should always be configured to use non-overlapping channels to prevent co-channel interference, which degrades performance. Autonomous access points are not required for 5 GHz channel selection; both autonomous and controller-based APs can utilize 5 GHz. Repeaters are generally discouraged due to performance degradation. Configuring adjacent APs to the same channel causes severe co-channel interference, drastically reducing throughput.
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