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.
Answer A. The NTP associations are not synced, it is only listed as a candidate because it was
configured. Routing is not the issue, so it must be mismatched authentication parameters.
Answer B. NTP sets the source IP address for all NTP packets based on the address of the
interface through which the NTP packets are sent. You can configure NTP to use a specific source
IP address.
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There’s only one valid answer – A.
If authentication parameters are matched, NTP will synchronize no matter whether R1 is configured with ntp source Loopback0 command or not. So, answer B is invalid.
Answer C is invalid, because there’s no such thing as “NTP session”.
D is invalid, because R2 is not configured as NTP master.
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