| Exam 642-885 | Question id=3337 | Multicast Routing in a Service Provider IP NGN Environment |
Which types of multicast distribution tree can PIM-SM use?
| A. |
Only shared tree rooted at the source | |
| B. |
Only shared tree rooted at the RP | |
| C. |
Only shortest path tree rooted at the RP | |
| D. |
Shared tree rooted at the source and shortest path tree switchover | |
| E. |
Shared tree rooted at the RP and shortest path tree switchover | |
| F. |
Shared tree rooted at the first-hop router and shortest path tree rooted at the RP |