Network access methods are techniques used to control how devices communicate over a network. These methods determine how data is transmitted and received, ensuring that multiple devices can share the same communication medium without interference. Common access methods include Carrier Sense Multiple Access (CSMA), which listens for a clear channel before transmitting, and Token Ring, where a token circulates to grant permission to send data. Different network types may use various access methods based on their requirements. For instance, Ethernet networks typically use CSMA/CD (Collision Detection) to manage data collisions, while Wi-Fi networks utilize CSMA/CA (Collision Avoidance) to minimize interference. Each method plays a crucial role in maintaining efficient and reliable communication.