单一方向标准孔（孔径90mm）不多于6孔时，宜采用哪种类型（）。
A、手孔
B、小号人孔
C、中号人孔
D、大号人孔
Which RIP configuration command allows the ERX Edge Router to send Unicast updates to configured neighbors?（）
A、neighbor
B、unicast-neighbor
C、triggered-update
D、passive-interface
Which of the following tasks is not performed by the job coordinator?（）
A、Update job log when a job completes
B、Spawn and remove job slaves
C、Write/read job info to/from memory cache
D、Query job table
E、Pass job information to job slaves
下列人（手）孔位置设置符合标准的是（）。
A、人（手）孔位置应设置在光（电）缆分支点
B、引上光（电）缆汇接点
C、坡度较大的管线拐弯处
D、以上都不是
Which command will remove the ‘stale’ status from a logical volume?（）
A、syncvg -p
B、syncvg -l
C、synclv -p
D、synclv -l
Which of the following commands should be used to delete an entry from the /etc/inittab?（）
A、xitab
B、rmitab
C、chitab
D、delitab