300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

Question

What distinguishes a source tree from a shared tree in a multicast environment?

A To route traffic from source to receiver a source tree uses a link-state routing protocol and a shared tree uses a distance-vector routing protocol.
B A source tree has its root at the source, and a shared tree has its root at a designated rendezvous point.
C To stream multicast from source to receiver, a source tree uses PIM-SM and a shared tree uses PIM-DM.
D Source trees are the default type for bidirectional PIM, and PIM-DM uses shared trees by default.

Explanation

A source tree is rooted at its multicast source, whereas a shared tree uses a common root at a designated rendezvous point (RP) for traffic from one or more sources. Cisco documents this distinction in its PIM multicast forwarding guidance.

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Cisco PIM Multicast Distribution Shared Tree

300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

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Notes

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