One MAIN benefit of multicast over unicast in a network AV solution is it

One MAIN benefit of multicast over unicast in a network AV solution is it
A . supports multi-channel audio.
B . supports higher video resolutions.
C . reduces network bandwidth when using multiple encoders.
D . reduces network bandwidth when using multiple decoders.

View Answer

Answer: D

Explanation:

Multicast transmission in a network AV solution significantly reduces network bandwidth when using multiple decoders. With multicast, a single stream of data is sent from the source and is then distributed to multiple recipients by the network infrastructure. This contrasts with unicast, where a separate stream is sent to each recipient, leading to higher bandwidth consumption. Multicast is particularly efficient in scenarios where the same content needs to be delivered to multiple devices, such as digital signage or IPTV.