Which of the following best describe SPT and RPT? (Choose two.)
- RPT is a source tree where the rendezvous point is the root of the tree.
- SPT is a source tree where the source is the root of the tree.
- RPT is a shared tree where the rendezvous point is the root of the tree.
- SPT is a shared tree where the source is the root of the tree.
Explanation: A source tree is a multicast distribution tree where the source is the root of the tree, and branches form a distribution tree through the network all the way down to the receivers. When this tree is built, it uses the shortest path through the network from the source to the leaves of the tree; for this reason, it is also referred to as a shortest path tree. A shared tree is a multicast distribution tree where the root of the shared tree is not the source but a router designated as the rendezvous point (RP). For this reason, shared trees are also referred to as RP trees (RPTs).
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