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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?

A) The table will be checked for errors and repaired.
B) The table will be optimized and replicated.
C) The table storage space will be reduced.
D) The table statistics will be stored.

2. The slave connects to the master and asks for updated records. What command was issued for this to happen?

A) RUN SLAVE
B) SLAVE START
C) START SLAVE
D) START RUN SLAVE
E) SLAVE RUN

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

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

4. Which three are levels in which MySQL Enterprise Monitor provides access control?

A) Application administration: the rights to view or change the MySQL Enterprise Monitor configuration
B) MySQL Enterprise Operations: the right to deploy the necessary MySQL Enterprise Agent
C) MySQL Enterprise Operations: the right to start/stop/restart/update MySQL Enterprise Monitor Services
D) Asset visibility: the rights to access data collected from hosts or MySQL instances
E) Specific data access: the rights to view specific types of potentially sensitive data

5. The MySQL Enterprise Monitor Agent requires a user configured in each MySQL instance that is being monitored with suitable privileges to collect information about the server.
Which statement is correct?

A) The super privilege is required when starting, stopping, or restarting monitored MySQL databases.
B) The super privilege is required when creating and populating the inventory table, as well as running statements such as show master logs or SHOW ENGINE INNODB STATUS.
C) MySQL Enterprise Monitor creates the required users automatically.
D) Monitoring metrics need super and root privileges because they are not available for a less-privileged user.

Solutions: