Refer to the exhibit.
Which two possible network conditions can you infer from this configuration? (Choose two.)
A.
The authentication parameters on R1 and R2 are mismatched.
B.
R1 is using the default NTP source configuration.
C.
R1 and R2 have established an NTP session.
D.
R2 is configured as the NTP master with a stratum of 7.