A MySQL Server has been running an existing application successfully for six months. The my.cnf is adjusted to contain this additional configuration:

The MySQL Server is restarted without error.
What effect will the new configuration have on existing account?

You have a MySQL replication setup and you intentionally stop the SQL thread on the slave.

What are two reasons that you may stop the SQL thread on the slave while keeping the I/O thread running?
(Choose two.)

After rebooting the host, you attempt to start the mysqld service. You get the following error:
Can't start the server: Bind on TCP/IP port: Address already in use
What is the most likely cause of this error?

The MySQL user 'adam' currently has USAGE permissions to the database.
The football database is transactional and has non-stop updates from application users. The 'adam' user needs to be able to take consistent backups of the football database by using the --single-transaction option.
Which extra GRANT permissions are required for adam to take mysqldump backups?

Due to an authentication plug-in that is used on the server, passwords are required to be sent as clear text as opposed to the usual encrypted format.
Which two methods would allow the mysqlclient to connect to the server and send clear text passwords?
(Choose two.)