Question

a group of devices in a local area network (lan) are connected by a ______: router switch hub server

Explanation:

In a Local Area Network (LAN), a switch is used to connect multiple devices. A router connects different networks (like LAN to WAN), a hub is an older, less efficient device for connection, and a server provides services. So the correct device for connecting LAN devices is a switch.

Answer:

B. switch