Consider an application that transmits data at a steady rate (for example, the sender generates an n-bit unit of data every k time units, where k is small and fixed). also, when such an application starts, it will continue running for a relatively long period of time. would a packet-switched network or a circuit-switched network be more appropriate for this application? why?

 For this type of application, it should be more appropriate a circuit-switched network.

Explanation: As the data are transmitted at a steady rate (x bits per second, for instance), and it's not transmitted in bursts, but during a relatively long period of time, it makes more sense to use a circuit-switched network instead of a packet-switched network, more useful when data shows in bursts (short intervals of data, followed by idle time, that can be filled with other data).