Question 1

You are attempting to secure a MySQL server by using SSL encryption.

On starting MySQL, you get this error:

[ERROR] mysqld: unknown option ‘--ssl’

What is the cause of the error?

Options :

A : The -- ssl level was not specified.

B : The server was not started with the --enable–ssl-plugin option.

C : --ssl is not a valid server option.

D : The mysqld binary was not compiled with SSL support.

E : The server’s SSL certificate was invalid.

Answer: D

Question 2

Why should you be selective when granting the PROCESS privilege to an account?

Options :

A : It allows a client to process scripts.

B : It allows the use of stored routines.

C : It allows a client to see another user-s queries with the SHOW PROCESSLIST command.

D : It allows a client to control running processes on a server.

Answer: C

Question 3

You have an InnoDB Cluster configured with three servers.

Examine this command, which executes successfully:

mysqldump -uroot -p -d mydatabase > mydatabase_backup.sql

Due to data loss, the cluster is initialized and a restore is attempted resulting in this error:

ERROR 13176 (HY000) at line 23: Cannot update GTID_PURGED with the Group Replication plugin running

Which two actions, either one of which, can fix this error and allow a successful restore of the cluster? (Choose two.)

Options :

A : Stop all instances except the primary read/write master instance and run the restore.

B : Remove the @@GLOBAL.gtid_purged statement from the dump file.

C : Create the backup by using the --set-gtid-purged=OFF option.

D : Remove the group replication plugin from each instance before restoring.

E : Remove the @@GLOBAL.gtid_executed statement from the dump file.

F : Restore using the --set-gtid-purged=OFF option.

Answer: B,C

Question 4

Your MySQL environment has asynchronous position based-replication with one master and one slave.

The slave instance had a disk I/O problem, so it was stopped.

You determined that the slave relay log files were corrupted and unusable, but no other files are damaged.

You restart MySQL Server.

How can replication be restored?

Options :

A : The slave relay logs should be deleted; then execute START SLAVE;

B : The relay logs from the master should be used to replace the corrupted relay logs.

C : The slave relay logs should be deleted; execute CHANGE MASTER to adjust the replication relay log file name, then issue start SLAVE;

D : The slave needs to be restored from backup.

Answer: B

Question 5

You are setting up a new server and you want to reserve 50GB of RAM for InnoDB use. What option would you set

Options :

A : innodb_ram_size=50GB

B : innodb_buffer_pool_size=50GB

C : innodb_buffer_pool=50G

Answer: B

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