Group Replication uses global transaction identifiers to track executed transactions and are fundamental in avoiding transaction conflict. Which additional three steps help in avoiding conflicts in group replication? (Choose three.)

The 'applicationdb' is using InnoDB and consuming a large amount of file system space. You have a / backuppartition available on NFS where backups are stored.
You investigate and gather this information:

Three tables are stored in the InnoDB shared tablespace and the details are as follows:
* The table data_currenthas 1,000,000 rows.
* The table data_reports has 1,500,000 rows.
* The table data_archivehas 4,500,000 rows.

You attempt to free space from ibdata1by taking a mysqldump of the data_archivetable and storing it on your backup partition.

Unfortunately, this action does not free any actual disk space back to the file system and the server disk space is running out.
Which set of actions will allow you to free disk space back to the file system?

You have just created a replication slave from a backup of the master made with mysqldump:

You try to log in to the slave with the application user, but fail as follows:

The login works on the master.
Which two changes to the process can fix the issue?

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 these values:
RELAY_LOG_FILE=hostname-relay-bin.00004
RELAY_LOG_POS=1383
Which command set would make the slave current?

You want to immediately stop access to a database server for remote user 'mike'@'client.example.com'. This user is currently not connected to the server.
Which two actions can you take to stop any access from the user?