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: Jan 15, 2026

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Question 1

On a master server that is using Statement-based replication a table of log data has become very large. You decide to delete 100,000 rows.

Which two methods can be independently invoked to ensure that the delete is properly propagated to the slave? (Choose two.)

A : Use the LIMIT clause to limit the deletion to 100,000 rows.

B : Change the replication mode to MIXED before issuing any delete statements when the LIMIT clause is used.

C : Use the LIMIT clause in conjunction with the ORDER BY clause.

D : Use the data modification is non-deterministic, the query optimizer will resolve any potential issues.

Answer: B,C

Question 2

A MySQL replication master is set up by using global reansaction identifiers(GTIDs). You execute this statement:

mysql> CREATE TABLE datatarget SELECT * FROM datasource;

ERROR 1786 (HY000): CREATE TABLE ... SELECT is forbidden when @@GLOBAL.ENFORCE_GTID_CONSISTENCY = 1.

Why is this statment forbiden?

A : GTIDs have detected thar a slave is inconsistent and therefore, disallow upadtes until the problem is resolved.

B : The datasource table is using an older InnoDB tablespace format, which is not compatible with GTIDs.

C : The datasource table is using the MyISAM engine, which is not compatible with GTIDs.

D : The statement cannot be logged in a transactionally safe manner.

Answer: D

Question 3

On examination, your MySQL installation datadir has become recursively world read/write/executable.

What are two major concerns of running an installation with incorrect file privileges? (Choose two.)

A : Users could overwrite configuration files.

B : Data files could be deleted.

C : SQL injections could be used to insert bad data into the database.

D : MySQL binaries could be damaged, deleted, or altered.

E : Extra startup time would be required for the MySQL server to reset the privileges.

Answer: A,B

Question 4

You have forgotten the root user account password. You decide to reset the password and execute:

Which additional argument makes this operation safer?

A : --old-passwords, to start MySQL to use the old password format while running without the grant tables.

B : --reset-grant-tables, to start the server with only the mysql database accessible.

C : --read-only, to set all data to read-only except for super users

D : --skip-networking, to prohibit access from remote locations

Answer: D

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

A : innodb_ram_size=50GB

B : innodb_buffer_pool_size=50GB

C : innodb_buffer_pool=50G

Answer: B

Page: 1 / 79

Total 392 Questions | Updated On: Jan 15, 2026

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