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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You have created your Compute instance using an Oracle-provided Oracle Linux image.
You want to log in to your OCI Compute instance using SSH. Which three items do you need for this process?

A) User Password
B) SSH private key
C) SSH public key
D) The root user
E) The opc user
F) Public IP address

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 during scheduled maintenance windows.
D) Only when the database size exceeds a certain limit.

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

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

4. MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?

A) Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.
B) Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';
C) Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
D) Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.

5. You set up a compressed full backup file from mysqlbackup by using the --compress option for MySQL Database backup. You are required to restore the database and apply the log.
Which two options should you add to the mysqlbackup to achieve the restoration of the database?

A) --copy-back-and-apply-log
B) --uncompress
C) --uncompress-and-apply-log
D) --decompress
E) --apply-log-and-copy-back

Solutions: