Which operational mode command can be used to synchronize the local system time with an NTP server?（）

A. read
B. read-write
C. read-only
D. write

A. No logging is enabled by default.
B. By default, the information is stored in a file named events.
C. Only the message severity level must be configured.
D. You can configure the router to send log messages to the console.

A. /var/messages
B. /var/syslog
C. /var/tmp
D. /var/log