A network that cannot manage multicast traffic would be less efficient in what way?

A network that cannot effectively manage multicast traffic would experience greater broadcast traffic, which increases inefficiency. In a multicast scenario, data packets are sent to multiple destinations simultaneously, reducing the need to send separate copies of the same data to each recipient. If multicast is not supported or managed properly, the network resorts to broadcasting, which sends copies of data to all devices on the network, whether they need it or not. This results in unnecessary bandwidth consumption and congested network traffic.

Consequently, greater broadcast traffic can lead to increased network load, slower response times, and potential dropout issues for real-time applications such as audio streaming, where multiple devices might simultaneously receive the same data they do not require. By managing multicast traffic effectively, the network can optimize performance and efficiency, minimize latency, and conserve bandwidth.