Designing Cisco Enterprise Networks (ENSLD) — Question 3

An engineer is designing a multicast network for a financial application. Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better scale routing tables, the design must not use source trees. Which multicast protocol satisfies these requirements?

Answer options

Correct answer: D

Explanation

BIDIR-PIM is the correct choice because it allows for a bidirectional flow of multicast traffic, effectively supporting many-to-many communications without the need for source trees, which helps in scaling routing tables. In contrast, PIM-SSM and PIM-SM are not designed for bi-directional data flow, and MSDP is primarily used for interconnecting different PIM domains rather than supporting this specific deployment model.