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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. 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) A set of SQL functions substantially support the SQL utilization of the data type.
C) It is based on the TEXT data type.
D) Comparisons of JSON values are not case-sensitive.
E) It supports indexing directly against the JSON-defined column.
F) It validates the JSON syntax on insert or merge.

2. Which two statements are correct about MySQL Enterprise Edition?

A) Oracle MySQL Enterprise tools & plugins are available as optional services (installation Feature Pack I/II).
B) MySQL configuration can be changed in /etc/lib/myi.cnf.
C) MySQL Enterprise Product Suite can be installed on an Oracle Cloud Infrastructure Virtual Cloud Network.
D) MySQL Enterprise Edition can be installed on an Oracle Cloud Infrastructure Compute Instance.
E) Oracle offers 24x7, global support for MySQL Enterprise Edition products installed on Oracle Cloud Infrastructure Compute Instances.

3. Which two statements are true about MySQL Enterprise Firewall?

A) The firewall functionality is dependent upon SHA-256 and ANSI-specific functions built in to the mysql.firewall table. These functions cannot be deleted, even by the root user.
B) MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.
C) On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
D) System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.
E) MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.
F) Server-side plug-ins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL-WHITELIST implement INFORMATION_SCHEMA tables that provide views into the firewall data cache.

4. What is Kubernetes in the context of MySQL?
Response:

A) A cloud service provided by Oracle for MySQL databases.
B) A database engine for MySQL.
C) A database management tool for MySQL.
D) An open-source container orchestration platform.

5. After installing MySQL 8.0, you initialize the data directory with the --initialize command. Which two are places where you can find the root password?

A) The root_pw variable stored in the mysq1.install table.
B) The root password displayed on the screen via a [warning] message.
C) The root password is not given and is blank. You must manually set the root password.
D) The root password inserted in the error log set by the --log-error=[file_name] variable
E) As root, execute the show password command by using the SHA-256 password encryption plug-in.

Solutions: