2024 The Most Effective 1Z0-908 with 142 Questions Answers
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Oracle 1z1-908 (MySQL 8.0 Database Administrator) Exam is an industry-recognized certification that validates the skills and knowledge of database administrators in managing and administering MySQL 8.0 databases. 1Z0-908 exam tests the candidate's expertise in various areas of database administration, including installation and configuration, security, backup and recovery, performance tuning, and high availability. MySQL 8.0 Database Administrator certification is designed to demonstrate the candidate's proficiency in MySQL 8.0 administration, making them well-equipped to handle complex database management tasks.
Oracle 1Z0-908 exam is a rigorous and challenging test of a candidate's knowledge and skills in MySQL 8.0 Database Administration. However, with the right preparation and study materials, candidates can feel confident and well-prepared to pass the exam and earn their certification.
Average Salary for Oracle 1Z0-908: MySQL 8.0 Database Exam Certified Professional
Oracle Database administrator roles are in great demand nowadays. The average salaries of Oracle 1Z0-908 Exam Certified professional in:
- United State - 94,000 USD
- India - 69,96,000 16,42,330 INR
- England - 71,000 POUND
- Europe - 80,000 Euro
NEW QUESTION # 81
Which statement is true about MySQL Enterprise Transparent Data Encryption (TDE)?
- A. MySQL TDE uses an appropriate keyring plugin to store the keys in a centralized location.
- B. TDE can encrypt InnoDB and MyISAM tables only when the tables are stored in the SYSTEM tablespace.
- C. Both MyISAM and InnoDB tables can be encrypted by setting the keyring_engine = ALL variable in the MySQL configuration file.
- D. Lost tablespace encryption keys can be regenerated only if the master database key is known or present in the Key Vault specification.
Answer: D
NEW QUESTION # 82
You have just installed MySQL on Oracle Linux and adjusted your /etc/my.cnfparameters to suit your installation.
Examine the output:
What statement is true about the start attempt?
- A. MySQL server continued to start up even though another process existed.
- B. systemdattempted to start mysqld, found another systemd mysqldprocess running, and shut it down.
- C. systemdwaited for 30 seconds before timing out and start up failed.
- D. MySQL server was not started due to a problem while executing process 2732.
- E. systemd found the mysqldservice disabled and failed to start it.
Answer: B
NEW QUESTION # 83
You are upgrading a MySQL instance to the latest 8.0 version.
Examine this output:
You plan to add this parameter to the configuration: innodb_directories='/innodb_extras' Which statement is true?
- A. It moves all innodb tablespaces to the /innodb_extras directory to enable a new innodb_data_home_dir to be defined.
- B. It defines all innodb tablespace options relative to a starting parent directory.
- C. It adds more temporary workspace in addition to the innodb_tmpdir location.
- D. It allows scanning of other locations to discover more innodb tablespaces.
- E. It is not necessary because innodb_data_home_dir is already defined.
Answer: E
NEW QUESTION # 84
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 needs to reconnect to the database.
- B. John has not activated the role.
- C. The DBA needs to execute FLUSH PRIVILEGES.
- D. The statement was blocked by MySQL Firewall.
Answer: B
NEW QUESTION # 85
Which two statements are true about MySQL Installer? (Choose two.)
- A. Manual download of separate product packages is required before installing them through MySQL Installer.
- B. It provides only GUI-driven, interactive installations.
- C. It provides a uniform installation wizard across multiple platforms.
- D. It installs most Oracle MySQL products.
- E. It performs product upgrades.
Answer: B,E
NEW QUESTION # 86
You made some table definition changes to a schema in your MySQL Server.
Which two statements reflect how MySQL Server handles the table definition changes? (Choose two.)
- A. MySQL Server stores a copy of the serialized data in the InnoDB user tablespace.
- B. MySQL writes SDI to the binary log for distributed backups.
- C. The metadata is serialized in JSON format in Serialized Dictionary Information (SDI).
- D. MySQL keeps InnoDB metadata changes in .sdi files in datadir.
- E. MySQL implicitly executes FLUSH TABLES and stores a snapshot backup of the metadata.
Answer: A,C
NEW QUESTION # 87
You must run multiple instances of MySQL Server on a single host.
Which three methods are supported? (Choose three.)
- A. Use systemdwith different settings for each instance.
- B. Run MySQL Server docker containers.
- C. Run mysqldwith --datadirdefined for each instance.
- D. Start mysqldor mysqld_safeusing different option files for each instance.
- E. Use resource groups to lock different instances on separate CPUs.
- F. Use system tools to lock each instance to its own CPU.
Answer: A,C,D
Explanation:
Explanation/Reference:
NEW QUESTION # 88
Which command enables rule-based MySQL Auditing capabilities?
- A. mysql> INSTALL PLUGIN audit_log;
- B. shell> mysqld --initialize --log-raw=audit.log
- C. mysql> INSTALL COMPONENT audit_log;
- D. shell> mysql < audit_log_filter_linux_install.sql
Answer: D
Explanation:
Explanation/Reference: https://dev.mysql.com/doc/mysql-security-excerpt/5.7/en/audit-log-filtering.html
NEW QUESTION # 89
An existing asynchronous replication setup is running MySQL 8.
Which two steps are a part of implementing GTID replication? (Choose two.)
- A. Execute this on the slave to enable GTID:
RESET SLAVE; START SLAVE GTID_NEXT=AUTOMATIC; - B. Restart MySQL (master and slave) with these options enabled:
--gtid_mode=ON
--log-bin
--log-slave-updates
--enforce-gtid-consistency - C. On the slave, alter the MySQL master connection setting with:
ALTER channel CHANGE MASTER TO MASTER_AUTO_POSITION = 1; - D. On the slave, alter the MySQL master connection setting with:
CHANGE MASTER TO MASTER_AUTO_POSITION = 1; - E. Enable GTID by executing this on the master and the slave:
SET GLOBAL GTID_ENABLED=on; - F. Execute this on the slave to enable GTID:
START SLAVE IO_THREAD WITH GTID;
Answer: B,D
NEW QUESTION # 90
Which two commands will display indexes on the parts table in the manufacturing schema? (Choose two.)
- A. EXPLAIN SELECT INDEXES FROM manufacturing.parts;
- B. SHOW INDEXES FROM manufacturing.parts;
- C. SELECT * FROM information_schema.COLUMN_STATISTICS;
- D. DESCRIBE manufacturing.parts;
- E. SELECT * FROM information_schema.statistics WHERE table_schema='manufacturing' AND TABLE_NAME='parts';
Answer: C,E
NEW QUESTION # 91
Examine this query and output:
Which two statements are true? (Choose two.)
- A. The optimizer estimates that 51 rows in the country table have Continent = 'Asia'.
- B. The query returns exactly 125 rows.
- C. 35 rows from the city table are included in the result.
- D. The country table is accessed as the first table, and then joined to the city table.
- E. It takes more than 8 milliseconds to sort the rows.
Answer: A,C
NEW QUESTION # 92
Examine this command and output:
Which two options will improve the security of the MySQL instance? (Choose two.)
- A. Remove the world read/execute privilege from the accounting directory.
- B. Remove world read privileges from the server-cert.pem certificate file.
- C. Remove world read privileges from the public_key.pem file.
- D. Change the parent directory owner and group to mysql.
- E. Change the group ownership of the mysql directory to the mysql user group.
- F. Remove group read/write privileges from the private_key.pem file.
Answer: D,E
NEW QUESTION # 93
Which step or set of steps can be used to rotate the error log?
- A. Rename the error log file on disk, and then execute FLUSH ERROR LOGS.
- B. Execute SET GLOBAL log_error = '<new error log file>'.
- C. Execute SET GLOBAL expire_logs_days=0 to enforce a log rotation.
- D. Execute SET GLOBAL max_error_count = <number of messages at point to rotate>.
Answer: A
NEW QUESTION # 94
Which two are contained in the InnoDB system tablespace (ibdata1) by default? (Chose two.)
- A. primary indexes
- B. InnoDB Data Dictionary
- C. table data
- D. doublewrite buffer
- E. change buffer
- F. user privileges
Answer: B,D
NEW QUESTION # 95
Examine this partial output for InnoDB Cluster status:
Which statement explains the state of the instance deployed on host2?
- A. It can be recovered from a donor instance on host3 by cloning using the command cluster.rejoinInstance ('<user>@host3:3377')
- B. It has been expelled from the cluster because of a transaction error.
- C. It has been removed from the cluster by using the command STOP GROUP_REPLICATION;
- D. It can rejoin the cluster by using the command cluster.addInstance('<user>@host3:3377')
- E. It can rejoin the cluster by using the command dba.rebootClusterFromCompleteOutage()
Answer: E
NEW QUESTION # 96
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