Which of the following is a characteristic of a router?

A router is a fundamental networking device that facilitates communication between different networks. Its primary function is to direct data packets between these networks, allowing them to communicate with each other effectively. This functionality is what makes connecting different networks—whether they are within a local area (LAN) or wide area (WAN)—a distinctive characteristic of routers.

The capability to connect networks enables routers to manage traffic between the internet and various local devices, distributing data packets to ensure optimal delivery based on the destination IP addresses. This is essential for internet connectivity, as routers serve as the gateway for all devices within a home or organization to access the internet and connect with other networks.

In contrast, providing only wireless access describes access points or wireless routers specifically designed for that purpose. Operating only on one frequency is not accurate, as routers can operate on multiple frequencies or bands, especially dual-band or tri-band routers designed to support several devices simultaneously. Lastly, while some routers do incorporate modem functionalities, they are distinct in their purpose and basic operation; thus, not all routers function as cable modems.