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: Mar 24, 2026

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Question 1

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 2

Examine this statement, which executes successfully:

Other-Image-2d087695c-370a-4149-9dae-43fdb2993133

You want to improve the performance of this query:

Other-Image-4d087695c-370a-4149-9dae-43fdb2993133

Which change enables the query to succeed while accessing fewer rows?

A : ALTER TABLE world.city ADD SPATIAL INDEX (Name);

B : ALTER TABLE world.city ADD SPATIAL INDEX (Population);

C : ALTER TABLE world.city ADD INDEX (Population);

D : ALTER TABLE world.city ADD INDEX (Name);

E : ALTER TABLE world.city ADD FULLTEXT INDEX (Name);

F : ALTER TABLE world.city ADD FULLTEXT INDEX (Population);

Answer: B

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

A : innodb_ram_size=50GB

B : innodb_buffer_pool_size=50GB

C : innodb_buffer_pool=50G

Answer: B

Question 4

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 5

Which two methods will provide the total number of partitions on a table? (Choose two.)

A : Query the INFORMATION_SCHEMA.PARTITIONS table

B : Use the command: SHOW TABLE STATUS

C : Query the performance_schema.objects_summary_global_by_type table

D : Query the INFORMATION_SCHEMA.TABLES table for the partition_count

E : Use the command: SHOW CREATE TABLE

Answer: A

Page: 1 / 79

Total 392 Questions | Updated On: Mar 24, 2026

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