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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

Which three installation options are available for installing the MySQL Enterprise Monitor/Agent on Linux?

A. A MySQL Enterprise Monitor to remotely deploy the MySQL Monitor Agent
B. A CLI-based wizard MySQL Enterprise Monitor, Agent, and a MySQL Repository database
C. A GUI for installing MySQL Enterprise Monitor, Agent, and a MySQL Repository database
D. A browser-based wizard to remotely deploy the MySQL Monitor Agent
E. A script (with an option file) for installing MySQL Enterprise Monitor, Agent, and a MySQL Repository database

Question 2

You have a MySQL Server instance (running with Port# 3306) monitored by the Service Manager in MySQL Enterprise Monitor. You cloned the MySQL Database instance and configured it to be a replicated MySQL instance as Slave using Port# 3316 on the same machine as the Master Server. The replication configuration is working correctly. The Master and Slave Servers are running.
You are trying to add the newly created MySQL Slave instance to the Monitor. The Service Manager in MySQL Enterprise Monitor notifies you that the new instance is successfully added; however, it is not added correctly at the newly added configuration points to the old Master monitored items. The Monitor shows only one monitored MySQL instance for Master and Slave.
Which two are possible reasons for this problem?

A. The mysql.inventory table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
B. The MASTER and SLAVE are grouped as one instance for monitoring.
C. The mysql.instance table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
D. All the MySQL instances (Master and Slave) have the same server_uuid in <datadir>/auto.cnf.
E. The SLAVE and MASTER instances are started with the same configured value for the option - - monitor_server_uuid.

Question 3

Which query will find rows in a table that have no counterpart in another table?

A. SELECT t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;
B. SELECT *FROM table1 INNER JOIN table2 ON table1.id=table2.id WHERE table1.id=! table2.id;
C. SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;
D. SELECT t1.name, t2.name2FROM employee t1 INNER JOIN info t2 WHERE t1.name=t2.name;

Question 4

Which three are requirements for MySQL Group Replication (GR)?

A. The binary log format must be set to mixed.
B. The minimum number of required nodes for achieving a consensus is two.
C. GR only works with MySQL versions 8.0.12 or higher.
D. The use of global transaction identifiers is required.
E. Data to be replicated must be stored in the InnoDB transactional storage engine.
F. Primary keys are required on every replicated table.

Question 5

Which MySQL command is used to grant specific privileges to a user on a database?
Response:

A. GIVE ACCESS
B. GRANT PERMISSIONS
C. SET PRIVILEGES
D. GRANT

Solutions: