Free Oracle 1Z0-908 Exam Questions

Become Oracle Certified with updated 1Z0-908 exam questions and correct answers

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Total 392 Questions | Updated On: Apr 15, 2026

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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.)

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

A : innodb_ram_size=50GB

B : innodb_buffer_pool_size=50GB

C : innodb_buffer_pool=50G

Answer: B

Question 3

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

mysql> SHOW SLAVE STATUS\G

... Slave_IO_Running: YesSlave_SQL_Running: No

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

A : to allow the remaining events to be processed on the slave while not receiving new events from the master

B : to allow a backup to be created under reduced load

C : to allow for point-in-time recovery on the slave

D : to prevent schema changes from propagating to the slave before they are validated

E : to prevent any transaction experiencing a deadlock

Answer: B,C

Question 4

Which two are valid uses for binary logs on a MySQL instance? (Choose two.)

A : recording the order in which queries are issued

B : audit of all queries

C : point-in-time recovery

D : replication

E : logging the duration and locks for all queries

Answer: A,C

Question 5

You execute this command:

shell> mysqlpump --exclude-databases=% --users

Which statement is true?

A : It creates a logical backup of all MySQL user accounts.

B : It creates a logical backup of all metadata, but contains no table data.

C : It returns an error because the mysqldump command should have been used.

D : It creates a logical backup of only the users database.

Answer: B

Page: 1 / 79

Total 392 Questions | Updated On: Apr 15, 2026

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