Routing convergence time is which of the following？（）
A、Time required for a VPN connection to occur
B、Time required by protocols to update their forwarding tables after changes have occurred
C、Time required for an IDS to detect suspicious software
D、Time required by switch ports to update their link status and transition to the forwarding state
Which of the following procedures WILL NOT increase contiguous free space on a the filesystem /data1， located on /dev/lv01， that is heavily fragmented？（）
A、 Run defragfs -r /data1； defragfs /data1
B、 Run defragfs -r /dev/lv01； defragfs /dev/lv01
C、 Back up the filesystem by name， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
D、 Back up the filesystem by inode， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
在Windows 7操作系统中，属于默认库的有（）
A、文档
B、音乐
C、图片
D、视频
自动同步可以有两种触发方式：（）。
A、定时触发
B、增量触发
C、事件触发
D、动态触发
质量管理体系审核可以分为（）和（）两个阶段
An AIX system administrator wants to reset the level at which the SIGDANGER signal is sent to processes so appropriate actions can be taken when paging space is running low. Which of the following commands is used to reset the level？（）
A、 vmtune -w
B、 svmon -w
C、 schedtune -w
D、 vmstat -s