1Z0-908 Certification Overview - [Dec 03, 2025] Latest 1Z0-908 PDF Dumps
The Best Oracle 1Z0-908 Study Guides and Dumps of 2025
The 1z1-908 exam covers a wide range of topics, including MySQL architecture, installation and configuration, security, backup and recovery, performance tuning, and high availability. Candidates are expected to have a deep understanding of these topics and be able to apply this knowledge in real-world scenarios. 1Z0-908 exam consists of 70 multiple-choice questions and must be completed within 105 minutes.
NEW QUESTION # 10
Examine this list of MySQL data directory binary logs:
binlog.000001 binlog.000002
.....
binlog.000289
binlog.000300
binlog.000301
binlog.index
Now examine this command, which executes successfully:
mysqldump --delete-master-logs --all-databases > /backup/db_backup.sql
Which two are true? (Choose two.)
- A. All databases, excluding master metadata, are backed up to the output file.
- B. All non-active binary logs are removed from the master.
- C. All details regarding deleted logs and master metadata are captured in the output file.
- D. All binary logs are backed up and then deleted.
- E. All databases are backed up to the output file.
- F. All binary logs are deleted from the master.
Answer: A,F
NEW QUESTION # 11
Examine this SQL statement:
Which set of privileges will allow Tom to execute this SQL statement?
- A. GRANT UPDATE ON 'world'.'city' TO 'tom'@'%'; GRANT SELECT ON 'world'.* TO 'tom'@'%';
- B. GRANT UPDATE ON 'world'.* TO 'tom'@'%';
GRANT ALL PRIVILEGES ON 'world'.'country' TO 'tom'@'%'; - C. GRANT UPDATE ON 'world'.'city' TO 'tom'@'%'; GRANT SELECT ON 'world'.'country' TO 'tom'@'%';
- D. GRANT ALL PRIVILEGES ON 'world'.'city' TO 'tom'@'%';
GRANT SELECT ('code') ON 'world'.'country' TO 'tom'@'%';
Answer: C
NEW QUESTION # 12
Examine this query and output:
Which two statements are true? (Choose two.)
- A. 35 rows from the city table are included in the result.
- B. The country table is accessed as the first table, and then joined to the city table.
- C. The query returns exactly 125 rows.
- D. The optimizer estimates that 51 rows in the country table have Continent = 'Asia'.
- E. It takes more than 8 milliseconds to sort the rows.
Answer: A,D
NEW QUESTION # 13
Examine these commands and output:
Which connection ID is holding the metadata lock?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
- F. 5
Answer: D
NEW QUESTION # 14
t is a non-empty InnoDB table.
Examine these statements, which are executed in one session:
BEGIN;
SELECT * FROM t FOR UPDATE;
Which is true?
- A. mysqlcheck --analyze --all-databases will execute normally on all tables and return a report.
- B. If OPTIMIZE TABLE; is invoked, it will create a table lock on t and force a transaction rollback.
- C. If OPTIMIZE LOCAL TABLE t; is invoked from another session, it executes normally and returns the status.
- D. If ANALYZE TABLE; is invoked from the same session, it hangs until the transaction is committed or rolled back.
Answer: C
NEW QUESTION # 15
MySQL is installed on a Linux server with this configuration:
Which method sets the default authentication to SHA-256 hashing for authenticating user account passwords?
- A. Add default_authentication_plugin=mysql_native_password in the configuration file.
- B. Set validate-user-plugins=caching_sha2_password in the configuration file.
- C. Add default_authentication_plugin=sha256_password in the configuration file.
- D. Define CREATE USER ''@'%' IDENTIFIED WITH sha256_password in the MySQL instance.
Answer: C
NEW QUESTION # 16
You have a MySQL system with 500 GB of data that needs frequent backups.
You use a mix of MyISAM and InnoDB storage engines for your dat
a. Examine your backup requirement:
The MySQL system being backed up can never be unavailable or locked to the client applications.
The recovery from the backup must work on any system.
Only 1 hour of data can be lost on recovery of the backup.
Which option fulfills all backup requirements?
- A. Take your backup from a slave of the MySQL system.
- B. Use the Clone Plugin to copy the data to another MySQL system.
- C. Take a logical backup of the MySQL system.
- D. Take a physical backup of the MySQL system.
Answer: C
NEW QUESTION # 17
Which two are true about differences between logical and physical upgrades of MySQL databases? (Choose two.)
- A. Physical upgrades are much faster because they do not require restarting the mysqld process.
- B. Physical upgrades are performed for current instances on bare metal deployments, whereas logical upgrades are used for virtual machines or containerized instances.
- C. Physical upgrades leave data in place, whereas logical upgrades require data to be restored from mysqldump-type backups taken before the upgrades.
- D. Post-upgrade table storage requirements after logical upgrades are usually smaller than that after physical upgrades.
- E. Post-upgrade table storage requirements after physical upgrades are usually smaller than that after logical upgrades.
- F. Logical upgrades are much faster because they do not require restarting the mysqld process.
Answer: C,F
NEW QUESTION # 18
You have a MySQL client installed on your Linux workstation with a default installation. You have your admin login credentials to connect to a MySQL server running Microsoft Windows on remote host
192.0.2.1:3306. You wish to connect directly to the world database.
Which four options need to be specified to complete this task with a single command? (Choose four.)
- A. --database=world
- B. --protocol=pipe
- C. --user=admin
- D. --socket=/tmp/mysql.sock
- E. --host=192.0.2.1
- F. --password
- G. --port=3306
- H. --shared-memory-base-name=world
- I. --protocol=UDP
Answer: B,E,F,H
NEW QUESTION # 19
Binary log events for the ‘mydb1’ schema must be copied to a different schema name ‘mydb2’.
Which command will do this?
- A. mysqlbinlog --rewrite-db=’mydb1->mydb2’ | mysql
- B. mysqlbinlog --datebase=mydb1 --database=mydb2 | mysql
- C. mysqlbinlog --rewrite-db=’mydb1’ --rewrite-db=’mydb2’ | mysql
- D. mysqlbinlog --read-from-remote-server --raw | sed ‘s/mydb1/mydb2/g’ | mysql
Answer: D
NEW QUESTION # 20
Which two tools are available to monitor the global status of InnoDB locking? (Choose two.)
- A. SHOW TABLE STATUS;
- B. SHOW ENGINE INNODB STATUS;
- C. INFORMATION_SCHEMA.INNODB_TABLESTATS
- D. INFORMATION_SCHEMA.INNODB_METRICS
- E. SHOW STATUS;
- F. INFORMATION_SCHEMA.STATISTICS
Answer: C,F
NEW QUESTION # 21
You wish to store the username and password for a client connection to MySQL server in a file on a local file system.
Which is the best way to encrypt the file?
- A. Use the AES_ENCRYPT() MySQL function on the option file.
- B. Use mysql_secure_installation to encrypt stored login credentials.
- C. Use mysql_config_editor to create an encrypted file.
- D. Use a text editor to create a new defaults file and encrypt it from Linux prompt.
Answer: C
NEW QUESTION # 22
Which two storage engines provide a view of the data consistent with the storage system at any moment? (Choose two.)
- A. NDB
- B. InnoDB
- C. MEMORY
- D. MyISAM
- E. ARCHIVE
Answer: C,D
NEW QUESTION # 23
Examine these statements, which execute successfully:
CREATE ROLE r_world_rd;
GRANT SELECT ON world.* TO r_world_rd;
CREATE USER john IDENTIFIED BY 'P@ssw0rd';
GRANT r_world_rd TO john;
Examine these statements issued by user John:
What is the reason for the error?
- A. John has not activated the role.
- B. The statement was blocked by MySQL Firewall.
- C. John needs to reconnect to the database.
- D. The DBA needs to execute FLUSH PRIVILEGES.
Answer: A
NEW QUESTION # 24
Which three are characteristics of a newly created role? (Choose three.)
- A. It is created as a locked account.
- B. It can be dropped using the DROP ROLEstatement.
- C. It can be renamed using the RENAME ROLEstatement.
- D. It can be granted to user accounts.
- E. It can be protected with a password.
- F. It is stored in the mysql.roletable.
Answer: B,D,E
Explanation:
Explanation/Reference:
NEW QUESTION # 25
You must configure the MySQL command-line client to provide the highest level of trust and security when connecting to a remote MySQL Server.
Which value of --ssl-mode will do this?
- A. VERIFY_CA
- B. REQUIRED
- C. PREFERRED
- D. VERIFY_IDENTITY
Answer: B
NEW QUESTION # 26
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