Referring to the outputs shown in the exhibit, which two statements are correct about the IS-IS adjacency? (Choose two.)
A. R1 is configured to participate in both Level 1 and Level 2.
B. R2 is configured to participate in both Level 1 and Level 2.
C. R1 is configured to participate in Level 2 only.
D. R2 is configured to participate in Level 2 only.
A and D
R1 Circuit type is 3 (L1 and L2) while R2 circuit type is 2 (L2 only)