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Oracle MySQL 2021 Implementation Essentials Sample Questions:

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

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

2. You are testing a new application and want to use data masking but the database is empty. What option will generate dummy data for you to use for testing?

A) Alter the table with the statement: ALTER TABLE IMPORT DATA WITH data_masking plugin;
B) Use MySQL Enterprise High Availability to access one of the available data tables
C) Use mysqldump to import data from the sakila_dummy database sample data set.
D) Execute the sakila-data. sqi script to populate the database

3. Which is true about inserting an additional line in a single document stored in MySQL document store?

A) You specify the new element,s position in the JSON_ARRAY_INSERT statement.
B) The path specified must be an array position past the end of an array using the JSON_POSITION statement.
C) You cannot insert a single line, you have to replace the entire document with a new document.
D) Any new lines can only be inserted at the end of the document.

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

5. The MySQL Replication Environment (Master and Slave) is prepared.
What two are options for connecting a Java application to the MySQL Master and Slave?

A)

B)

C)

D)

Solutions: