Each node device on a wireless LAN requires the use of a(n)?

Each node device on a wireless LAN requires the use of a Network Interface Card (NIC). The NIC is fundamental because it enables the device to connect to the network, facilitating communication and data transfer over the wireless medium. In essence, a NIC is responsible for converting the digital data from the device into a format suitable for transmission over the network, and vice versa.

In a wireless context, this typically refers to a wireless NIC, which allows devices to connect to the wireless access point and interact with other devices on the LAN. The presence of a functioning NIC is essential for a device to participate in the wireless network, as it serves as the interface through which the device can send and receive data packets.

Other components, such as routers, switches, and access points, play supportive roles in network management and connectivity but do not replace the need for a NIC in each device. The router directs traffic between networks, a switch manages connections within a network, and an access point allows wireless devices to connect to a wired network. However, without a NIC, a node would not be capable of engaging in any network communication.