| Exam 642-885 | Question id=3353 | Multicast Routing in a Service Provider IP NGN Environment |
What must occur before an (S,G) entry can be populated in the multicast routing table?
| A. |
The (*,G) entry must have timed out | |
| B. |
The (*,G) entry OIL must be null | |
| C. |
The router must be directly connected to the multicast source | |
| D. |
The parent (*,G) entry must be created first |