Several new coverage cells are required to improve the Wi-Fi network of an organization.

The design goal is to add coverage cells without creating unnecessary contention. Adjacent Wi-Fi cells should use nonoverlapping channels so clients in neighboring coverage areas do not compete on the same RF channel. In the 2.4-GHz band, that usually means channels 1, 6, and 11 in many regulatory domains. The 5-GHz band provides far more channel capacity than 2.4 GHz and is preferred where client capability and design requirements support it. The source answer that selected same-channel adjacent APs is wrong: placing neighboring APs on the same channel increases co-channel contention, not throughput. A repeater AP is not the standard answer for overlapping channel design, and autonomous AP mode is not required simply to select 5-GHz channels. Cisco CCNA 200-301 v1.1 wireless fundamentals expects candidates to understand channel planning, cell overlap, and RF capacity. The correct recommendations are to use the larger 5-GHz channel set where appropriate and configure overlapping cells on nonoverlapping channels.