单项选择题

Identify a performance impact when using the Performance Schema.（）

A.There is no impact on performance
B.The overhead depends on the settings of the Performance Schema
C.There is an overhead for querying the Performance Schema but not for having it enabled
D.There is a constant overhead regardless of settings and workload

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热门试题

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?（）

A.A
B.B
C.C
D.D

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?（）

A.The attribute "STATUS" is set to the string EXTERNAL_AUTH
B.The attribute "PRIV_USER" contains the username
C.The event type that is given in the attribute "NAME" is EXTERNAL_AUTH
D.There is no differentiation between native and external authentication events
E.External authentication is managed through external auditing logs
F.The "PROXY_PRIV" user shows a username if external authentication is used