单项选择题
A.It requires the RELOAD, FILE, and DROP privileges
B.It closes and reopens all log files
C.It closes and sends binary log files to slave servers
D.It flushes dirty pages in the buffer pool to the REDO logs
单项选择题 Identify a performance impact when using the Performance Schema.（）
单项选择题 You are having problems with connections from a specific host (192.168.1.15) not closing down correctly. You want to find the state of the threads from that host check for long-running queries. Which statement will accomplish this?（）
单项选择题 Consider the Mysql Enterprise Audit plugin. Which statement is true when you identify a connection event that has used external authentication?（）