单项选择题

Which of the following kdb subcommands should be entered to obtain information about a serial port?（）

A. tty
B. stat
C. trace
D. stream

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单项选择题

A. /var/adm/ras/bosinstlog
B. /var/adm/ras/devinst.log
C. /var/adm/rshlog
D. /var/adm/sulog

单项选择题

A. errpt -d
B. errpt -a
C. errpt -D
D. errpt -i /var/adm/ras/diag_log

单项选择题

A. ping RemoteHostName
B. ping RemoteHostIPaddr
C. nslookup RemoteHostName
D. ping lo0