While configuring Cisco NSF awareness, a network engineer enters the bgp graceful-restart command after the BGP session is established in a router that runs IOS XE Software. Graceful restart capabilities are not exchanged. Which two actions should be taken? (Choose two.)

Refer to the exhibit. P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration applied.
The BGP session is not coming up. Assume that there is no IP reachability problem and both routers can open tcp port 179 to each other.
Which two actions fix the issue? (Choose two.)

Refer to the exhibit.

Which task must you perform on interface g1/0/0 to complete the SSM implementation?

Which statement about BFD on Cisco IOS XR Software is true?

Refer to the exhibit.

A service provider technician is working on a multicast issue for a customer. While checking the multicast table, the technician notices that no flags are present for the (1.1.1.1, 239.1.1.1) entry, yet flags are present for the (1.1.1.1, 232.1.1.1) entry.
Which factor might explain this issue?