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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You get a maintenance-notification about your MySQL Enterprise Edition in Oracle Cloud Infrastructure (OCI) Compute instance. What is re the implication?

A) You can expect an outage of your MySQL OCI instance during the planned time..
B) You need to agree to the maintenance windows. If not, you are not affected by the outage.
C) There are no maintenance operations planned. You need to do them manually.
D) Depending on the planned outage, you may not be affected by it. You need to read the maintenance details in the support notice.

2. When should you perform a backup in a MySQL database?
Response:

A) After critical data updates or before making significant changes to the database.
B) After every successful query execution.
C) Only when the database size exceeds a certain limit.
D) Only during scheduled maintenance windows.

3. 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) Monitoring metrics need super and root privileges because they are not available for a less-privileged user.
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) The super privilege is required when starting, stopping, or restarting monitored MySQL databases.
D) MySQL Enterprise Monitor creates the required users automatically.

4. Which three are characteristics of the JSON data type?

A) Key or array references enable quick read-access to look up document elements directly.
B) It validates the JSON syntax on insert or merge.
C) A set of SQL functions substantially support the SQL utilization of the data type.
D) Comparisons of JSON values are not case-sensitive.
E) It is based on the TEXT data type.
F) It supports indexing directly against the JSON-defined column.

5. You want to change the default behavior of MySQL Enterprise Monitor (MEM). New instances detected by a MEM agent should automatically monitor discovered instances.
How can you change the Advisor Setting?

A) Go to the configuration section (Advisors) and create a new advisor rule for new MySQL instances based on the MySQL Advisor Wizard.
B) Go to the configuration section (Users) and create a new user according to the existing users of your new MySQL instances.
C) Go to the configuration section (MEM) and configure the default login credentials.
D) Go to the configuration section (Advisors) and edit the default settings of the MySQL Process Discovery according to the existing users of your new MySQL instances.

Solutions: