Which statement regarding PIM-DM is true?

Which statement regarding PIM-DM is true?

• A. It floods packets regularly to all network segments
• B. It actively manages routing paths based on receiver presence
• C. It does not require neighbor discovery mechanisms
• D. It uses a deterministic algorithm for route selection

Answer: (B)

The statement regarding PIM-DM (Protocol Independent Multicast - Dense Mode) that is true is that it actively manages routing paths based on receiver presence. PIM-DM is designed for scenarios where multicast group members are densely located in the network. This protocol begins with a flood-and-prune approach, where multicast packets are initially flooded to all network segments. When routers detect that no group members remain on specific segments, they prune those segments from the multicast tree. Therefore, it effectively manages routing paths by keeping track of where receivers are located and adjusting the multicast tree accordingly to optimize the distribution of multicast traffic. This dynamic management of routing paths based on the presence of receivers allows PIM-DM to efficiently utilize network resources in environments where multicast receivers are prevalent, reflecting its suitability for dense multicast scenarios. The correct utilization of this protocol leads to minimized bandwidth waste and improved delivery of multicast traffic. The other statements do not accurately describe the functions or characteristics of PIM-DM. For instance, while PIM-DM does start by flooding packets, it later prunes these based on receiver presence rather than continually flooding them. Additionally, while it does not require traditional neighbor discovery mechanisms like some other protocols might, it still involves an understanding of

The statement regarding PIM-DM (Protocol Independent Multicast - Dense Mode) that is true is that it actively manages routing paths based on receiver presence.

PIM-DM is designed for scenarios where multicast group members are densely located in the network. This protocol begins with a flood-and-prune approach, where multicast packets are initially flooded to all network segments. When routers detect that no group members remain on specific segments, they prune those segments from the multicast tree. Therefore, it effectively manages routing paths by keeping track of where receivers are located and adjusting the multicast tree accordingly to optimize the distribution of multicast traffic.

This dynamic management of routing paths based on the presence of receivers allows PIM-DM to efficiently utilize network resources in environments where multicast receivers are prevalent, reflecting its suitability for dense multicast scenarios. The correct utilization of this protocol leads to minimized bandwidth waste and improved delivery of multicast traffic.

The other statements do not accurately describe the functions or characteristics of PIM-DM. For instance, while PIM-DM does start by flooding packets, it later prunes these based on receiver presence rather than continually flooding them. Additionally, while it does not require traditional neighbor discovery mechanisms like some other protocols might, it still involves an understanding of