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

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

Which High Availability solution can provide a consistent, time-delayed (for example, one hour) snapshot of the live production database?（）

A、MySQL Replication

B、Distributed Replication Block Device

C、Windows Server Failover Clustering

D、MySQL Cluster

质量管理体系审核可以分为（）和（）两个阶段

Which MySQL utility program should you to process and sort the slow Query log based on query time or average query time?（）

A、Mysqlaccess

B、Mysqldump

C、Mysqlshow

D、Mysqlslow

E、Mysqldumpslow

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.