What is characteristic of a circuit-switched network?

A circuit-switched network is characterized by establishing a dedicated path for communication between two endpoints for the duration of the conversation or data transfer. This method ensures that the entire bandwidth of the circuit is reserved for that connection, which leads to a consistent quality of service without interruptions or delays that might occur in other types of networking methods.

In contrast, the other options reflect features of different networking techniques. For example, simultaneous connections for multiple users are a hallmark of packet-switched networks, where data is broken into packets that can be routed independently across shared pathways. Routing data packets based on availability is also a feature of packet-switched networks, allowing for more efficient use of bandwidth as packets can take different paths to their destination based on network conditions. Lastly, while circuit-switched networks can be used for voice communication and certain types of data transmission, they are not primarily recognized for broadband internet access, which typically uses packet-switched technology to accommodate multiple users and dynamic data transfer efficiently.