CCDE: Cisco Certified Design Expert (Written) — Question 46

Which statement is true about connecting an IP multicast domain that is operating in PIM dense mode to a PIM sparse mode domain?

Answer options

• A. The interconnection must be made at the rendezvous point of the PIM sparse mode domain.
• B. The connection can be made at any location in the network, as PIM sparse mode will inter-operate seamlessly with PIM dense mode.
• C. PIM dense mode and sparse mode domains are not inter-operable and cannot be connected.
• D. The connection can be made at any location in the network, but PIM sparse mode and PIM dense mode cannot inter-operate; IGMP must be used to provide the interconnection.

Correct answer: A

Explanation

The correct answer is A because in order to connect a PIM dense mode domain to a PIM sparse mode domain, the interconnection must occur at the rendezvous point designated for the PIM sparse mode. Options B and D incorrectly suggest seamless interoperability or connection flexibility, while C states that PIM modes cannot be connected at all, which is inaccurate.