Which command will allow you to quickly determine the administrative status of all interfaces on a Junos device?（）

单项选择题Which statemetn is true regarding the Network Time Protocol (NTP) on Junos devices?（）

A. MD5 authenticaton is supported by the Junos OS
B. Server mode is not supported by the Junos OS
C. The Junos OS can provide a primarytime reference
D. The Junos OS does not support the use of a boot server

单项选择题Which CLI command do you use to determine which files are cleanup candidates?（）

A. request system storage cleanup candidates
B. request sytem services storage candidates
C. request system services candidate cleanup
D. request system storage cleanup dry-run