For the following configuration commands:

For the following configuration commands:

[H3C] ntp-service refclock-master 127.127.1.1 6

Understanding, which is correct
A . This command can be successfully configured on all H3C series switches
B . This command configures the local clock as the reference clock of the system
C . The device successfully configured with this command has a clock accuracy of 6 in stratum
D . The device successfully configured with this command can act as a clock server to provide external clock synchronization services

View Answer

Answer: BCD