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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

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

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

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

3. You have a backup image file that is backed up using MySQL Enterprise Backup with the -compress option:
/home/mysq1/backup/full/mybackup/myimage. Img

You are required to perform a database restore to a new machine to provision the database. Which command can provision the new database in the datadir as /home/mysql/data/MEB?

A)

B)

C)

D)

E)

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

A) MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.
B) System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.
C) Server-side plug-ins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL-WHITELIST implement INFORMATION_SCHEMA tables that provide views into the firewall data cache.
D) On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
E) MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.
F) 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.

5. Which three statements are true about MySQL Enterprise Backup?

A) It performs hot or warm backups.
B) It cannot back up encrypted tablespaces.
C) It performs logical backups.
D) It provides the ability to create incremental backups.
E) It enables you to take non-locking backups.

Solutions: