A.It is used to create a subscription to specify the streaming interval

B.It is used to identify traps for SNMP polling

C.It is used to identify MIB entries and has a list of YANG models

D.It is used to create a sensor-group and has a list of YANG models for streaming

A.reservation

B.path

C.tear

D.error

A.The neighbor relationship is down because R2 is operating as a Level 1 router and the two routers are in different area

B.The neighbor relationship is up because R2 is level 1 and level 2 router.

C.The neighbor relationship is down because the two routers are in the same subnet.

D.The neighbor relationship is down because the two routers are configured with different area types