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 are considering using file-system snapshots to back up MySQL.

Which three statements are true? (Choose three.)

A : They take roughly twice as long as logical backups.

B : They allow direct copying of table rows with operating system copy commands.

C : They work best for transaction storage engines that can perform their own recovery when restored.

D : The backup window is almost zero from the perspective of the application.

E : They do not back up views, stored procedures, or configuration files.

F : There is a slight performance cost while the snapshot is active.

G : They do not use additional disk space.

Answer: A,C

Question 2

Your MySQL server was upgraded from an earlier major version.

The sales database contains three tables, one of which is the transactions table, which has 4 million rows.

You are running low on disk space on the datadir partition and begin to investigate.

Examine these commands and output:

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Which two statements are true? (Choose two.)

A : Executing SET GLOBAL innodb_row_format=COMPRESSED and then ALTER TABLE transactionswill free up disk space.

B : Executing ALTER TABLE transactions will enable you to free up disk space.

C : Truncating the sales and leads table will free up disk space.

D : Truncating the transactions table will free up the most disk space.

E : The transactions table was created with innodb_file_per_table=OFF.

Answer: A

Question 3

You are using the Performance Schema to investigate replication on a slave which has a single master.

The option slave-parallel-type is set to DATABASE.

Assume that all instruments and consumers are enabled and all threads are instrumented.

Which two facts can be concluded from the given output? (Choose two.)

A : The salve has two intermediate relay slaves connected to it.

B : The slave is configured with slave_parallel_workers= 4.

C : At most, two schemas are being updates concurrently.

D : THREAD_ID 21 has stopped running.

E : The slave cannot process the relay log fast enough to use all threads.

F : The server needs more cores to use all slave threads.

Answer: A,B

Question 4

Examine this command and output:

Which statement is true?

A : Firewall_cached_entries is the number of statements found in the query cache for users in DETECTING mode.

B : Firewall_access_denied is the number of connection attempts from prohibited hosts that are denied.

C : Firewall_access_suspicious is the number of statements logged as suspicious for users in DETECTING mode.

D : Firewall_access_granted is the number of connections granted from whitelisted hosts.

Answer: C

Question 5

You execute mysqladmin shutdown on a MySQL server that is decribed as follows:

- It is running with both active and idle client connections.

- It has open transactions against InnoDB.

- It has active multi-row inserts into MyISAM engine tables.

- Innodb_fast_shitdown is set to 1.

What are three effects of shutting down the server by using a mysqladmin shutdown command?

A : Connections that have an open transaction are rolled back.

B : Connections with statements running against MyISAM tables wait for completion.

C : New client connections are not accepted after shutdown is initiated.

D : Connections are accepted during the shutdown process because a graceful shutdown can take large amounts of time.

E : Partial updates may occur for non-transactional tables.

Answer: A,C

Page: 1 / 79

Total 392 Questions | Updated On: Apr 15, 2026

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