Which statement is true about devices on a LAN within the same subnet?

Devices on a Local Area Network (LAN) that are within the same subnet can communicate directly with each other without the need for an intermediary device like a router. This direct communication is possible because they share the same network address, which allows them to exchange data packets directly through the network switches or hubs that connect them.

In a subnet, devices use the same range of IP addresses, and the subnet mask defines which portion of the IP address is the network part and which part is for the hosts. When devices are on the same subnet, they can resolve each other's addresses and establish a connection, facilitating efficient data transfer, such as file sharing, printer access, and other local services. This characteristic is fundamental to how networks are structured and function within Ethernet and IP networking.

The other options imply limitations on communication that do not apply to devices on the same subnet, which is why they do not accurately describe the functionality of a LAN.