Question 1

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 2

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 3

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

Question 4

Which three methods will show the storage engine for the Country table? (Choose three.)

Options :

A : SHOW CREATE TABLE Country;

B : SHOW ENGINE Country STATUS;

C : SHOW TABLE STATUS LIKE ‘Country’;

D : SELECT ENGINE FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME= ‘Country’;

E : SELECT ENGINE FROM INFORMATION_SCHEMA.ENGINES WHERE TABLE_NAME= ‘Country’;

Answer: A,C,D

Question 5

When the backup is taken, there are no errors.

Why are triggers missing from the backup?

Options :

A : The FILE privilege is required to back up the TRG files stored in the database directory.

B : The PROCESS privilege will allow the user access to process items such as triggers and functions.

C : The ALL privilege is required to back up triggers because triggers have a wide variety of abilities.

D : The TRIGGER privilege Is required to create, execute, and show triggers in a database.

Answer: D

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