CWNA Practice Exam: Certified Wireless Network Administrator Prep & Study Guide

The recommended distance for placing access points 20-30 feet apart is based on the need to achieve optimal coverage while minimizing interference and ensuring sufficient signal strength across the network. This distance allows each access point to have a strong and reliable connection within its designated coverage area, reducing the likelihood of overlapping signals that could lead to performance issues such as channel interference.

When access points are spaced too closely together, they can experience co-channel interference, where multiple points transmit on the same channel, causing signal degradation and impacting network performance. By spacing the access points appropriately, each can operate on a different channel and provide better coverage and connectivity for clients in the area.

In addition, this distance helps accommodate the physical environment, as factors such as walls, furniture, and other obstacles can attenuate signals. Therefore, spacing access points 20-30 feet apart is generally more effective for achieving widespread coverage and a high-quality wireless experience.