单项选择题

Which statement is true about using Microsoft Windows Cluster as a platform for Mysql?（）

A.It implements High Availability by using the .NET Connector's' load balancing capabilities
B.It is shared-nothing architecture
C.It is provided by means of IP- level disk replication
D.It relies on the shared disk architecture being visible to both servers

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多项选择题

Which two requirements would lead towards a high availability solution?（）

A.When uptime is critical
B.When data must be refactored
C.When application concurrency is static
D.When data loss is unacceptable
E.When application is a single point of failure

单项选择题

You have forgotten the root user account password. You decide to reset the password and execute the following:
Shell＞ /etc/init.d/mysql stop
Shell＞ /etc/init.d/mysql start – skip-grant tables
Which additional argument makes this operation safer?（）

A.–skip-networking, to prohibit access from remote locations
B.–reset-grant-tables, to start the server with only the mysql database accessible
C.–read-only,to set all data to read-only except for super users
D.–old-passwords, to start Mysql to use the old password format while running without the grant tables

单项选择题

An existing master-slave setup is currently using a delayed replication of one hour. The master has crashed and the slave must be "rolled forward" to provide all the latest data. The SHOW SLAVE STATUS indicates the following values: RELAY_LOG_FILE =hostname-relay-bin.00004 RELAY_LOG_POS = 1383 Which command set would make the slave current?（）

A.Gtid_mode must be set to AUTO during point in time recoveries
B.Mysqlbinlog ignores arguments to – exclude-gtids-it means ignore all events with GTIDs
C.The server keeps track of which GTIDs have already been executed and skips those
D.Enforce_gtid_consistency is set to ON