What device would a WLAN administrator install to maximize bandwidth for indoor LAN users?

The bandwidth control unit (BCU) is ideal for maximizing bandwidth for indoor Local Area Network (LAN) users because it allows administrators to manage and distribute bandwidth more efficiently across the network. A BCU can prioritize traffic, allocate bandwidth dynamically to different users or applications, and limit bandwidth for lower-priority traffic. This ensures that critical applications receive the necessary bandwidth while optimizing overall network performance.

Access points (APs) can also help optimize a WLAN but primarily improve coverage or facilitate connections. While they enhance the number of available connections and can improve the user experience, they do not actively manage or control bandwidth allocation like a BCU does. Similarly, repeaters extend the range of a network but do not inherently manage bandwidth, which may lead to a decrease in performance due to signal degradation and increased latency.

A network switch, while essential for connecting multiple devices in a wired setup, does not function in the same way as a BCU. It helps in managing local traffic but does not prioritize bandwidth for applications or users in the manner that a BCU can.

Therefore, the device that directly addresses maximizing bandwidth usage for indoor LAN users, taking into account the specific management of bandwidth allocation, is the bandwidth control unit (BCU).