Which of the following is NOT a characteristic of multicast transmission?

Which of the following is NOT a characteristic of multicast transmission?

• A. A single packet can be sent to a group of hosts.
• B. It's suitable for streaming media distribution.
• C. Only one source can send data to multiple hosts.
• D. Multicast transmission can be used by routers to exchange routing information.

Answer: (C)

Multicast transmission is designed to efficiently send data from a single source to multiple designated recipients, but it allows for multiple sources to send data. The essence of multicast is that it facilitates a one-to-many communication model where a single packet is transmitted to a specific group identified by a multicast address. This method is especially beneficial for applications such as streaming media, where the same content needs to be delivered simultaneously to many users without forcing each host to make an individual connection to the source. Thus, multicast is indeed capable of supporting multiple sources, enabling different servers or devices to send data to the same group. While the other characteristics accurately describe multicast transmission—such as its suitability for streaming media distribution and the use of multicast in routers for exchanging routing information—the notion that only one source can send data is inaccurate. This redundancy provides scalability and flexibility, making multicast a vital component of network communications.

Multicast transmission is designed to efficiently send data from a single source to multiple designated recipients, but it allows for multiple sources to send data. The essence of multicast is that it facilitates a one-to-many communication model where a single packet is transmitted to a specific group identified by a multicast address.

This method is especially beneficial for applications such as streaming media, where the same content needs to be delivered simultaneously to many users without forcing each host to make an individual connection to the source. Thus, multicast is indeed capable of supporting multiple sources, enabling different servers or devices to send data to the same group.

While the other characteristics accurately describe multicast transmission—such as its suitability for streaming media distribution and the use of multicast in routers for exchanging routing information—the notion that only one source can send data is inaccurate. This redundancy provides scalability and flexibility, making multicast a vital component of network communications.