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

单项选择题Which CLI mode allows you to make configuration changes?（）

A. enable mode
B. configuration mode
C. operational mode
D. active mode

单项选择题Which command do you use to display the messages seen during the last system boot?（）

A. show system boot-messages
B. show chassis messages
C. show file system boot-messages
D. show boot-log messages

单项选择题During a password recovery, what is the next step after configuring the system to boot into single-user mode?（）

A. Reset the root password
B. Press the space bar
C. Type recovery
D. Press the "Enter" key