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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. 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) Any new lines can only be inserted at the end of the document.
D) You cannot insert a single line, you have to replace the entire document with a new document.

2. You just installed MySQL by Using a Package Manager on Linux.
Where are the default InnoDB redo log files stored?

A) /etc/my.cnf
B) /usr/mysql
C) /var/lib/mysql
D) /usr/redo
E) /usr/bin/logs
F) /var/lib/mysql/innodb

3. Which of the following statements is true regarding MySQL user account privileges?
Response:

A) The RELOAD privilege allows a user to delete data from a table.
B) A user with the SUPER privilege can only read data from the database.
C) The USAGE privilege allows a user to connect to the MySQL server but grants no other privileges.
D) The GRANT option allows a user to revoke privileges from other users.

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

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

5. Which query will find rows in a table that have no counterpart in another table?

A) SELECT t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;
B) SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;
C) SELECT t1.name, t2.name2FROM employee t1 INNER JOIN info t2 WHERE t1.name=t2.name;
D) SELECT *FROM table1 INNER JOIN table2 ON table1.id=table2.id WHERE table1.id=! table2.id;

Solutions: