Final answer:
Wireless LANs are usually deployed in an access capacity instead of as the network's core layer due to their inability to meet the requirements of the core layer and their susceptibility to interference and signal degradation. The core layer needs to be fast, stable, and capable of handling a large volume of traffic without downtime.
Step-by-step explanation:
Wireless local area networks (LAN) are usually deployed in an access capacity instead of as the network's core layer for several reasons. Firstly, wireless LANs are generally incapable of meeting the high-speed and high-stability requirements of the network core layer. The core layer needs to be able to handle a tremendous amount of traffic with little difficulty and must have no downtime.
Additionally, wireless LANs are typically deployed in an access capacity because they are more susceptible to interference and signal degradation compared to wired networks. Factors such as distance, physical obstacles, and environmental conditions can affect the performance and reliability of wireless LANs.
Moreover, the network core layer is usually where critical infrastructure and services are located, such as servers, databases, and high-bandwidth applications. These resources require a more stable and reliable wired connection to ensure consistent and uninterrupted access.