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Oracle MySQL 2021 Implementation Essentials Sample Questions:

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

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

2. Which statement would you use to remove the population column from the city table?

A) DELETE population FROM city;
B) ALTER TABLE city DELETE population;
C) ALTER TABLE city LESS population;
D) DROP population FROM city;
E) ALTER TABLE city DROP population;

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

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

4. An Oracle Cloud Infrastructure customer already has many database instances configured and running in the cloud; however, they are reporting that they are unable to create any more instances.
What could be the problem?

A) The customer reached the database instance limit of 32.
B) The customer has not kept up with their patching requirements; new instances cannot be created unless the majority or the template of existing instances are up-to-date.
C) The customer does not have proper user rights.
D) The customer account might have reached resource quota/limits.

5. You establish MySQL Enterprise Server on Oracle Cloud Infrastructure connection via Secure Shell (SSH).
When accessing a new MySQL Enterprise Edition Oracle Cloud Infrastructure (OCI) instance, you want to use MySQL Enterprise Workbench for SQL and remote management.
What are two ways to successfully configure Workbench based on the MySQL access credentials?

A) Configure the MySQL Router first and based on those settings, you access your MySQL CS instance.
B) Open the MySQL OCI instance access port 3306. For the MySQL connection, you use this port, and, in addition, you configure the remote management based on SSH based on the provided key.
C) Configure TCP/IP over SSH and based on the created private key, opc-User, and MySQL access credentials, you can access the MySQL OCI instance.
D) Convert the private key to ppk format first. Based on TCP/IP over SSH and based on the created private key, opc-user, and MySQL access credentials, you can access the MySQL CS instance.

Solutions: