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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. How does MySQL HeatWave improve query performance?
Response:

A) By offloading analytics queries to an in-memory, highly parallel processing engine.
B) By replicating data across multiple servers.
C) By automatically creating indexes on frequently used columns.
D) By caching the entire database in memory.

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

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

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

4. You establish MySQL Enterprise Server on Oracle Cloud Infrastructure connection via Secure Shell (SSH) For accessing a new MySQL Enterprise Edition on an Oracle Cloud Infrastructure (OCI) Instance you " Add SSH key " information during the OCI instance setup. You want to use Putty from your Windows Client to install MySQL.
What are the correct steps to accomplish this?

A) Open Port 22 on your OCI Instance and convert the private key to ppk format. This new private key can be used for authentication.
B) Use the provided private key for authentication.
C) Convert the private key to ppk format first and use the new private key for authentication.
D) Open Port 22 on your OCI Instance and configure Putty with the ssh private key.

5. You want to create an encrypted table. So, you enter this command:
CREATE TABLE 'test_encryption2% (
'id' int(10) unsigned NOT NULL AUTO_INCREMENT,
'server_name' varchar(15) NOT NULL,
PRIMARY KEY ('id') ) ENGINE=MYISAM AUTO_INCREMENT=l DEFAULT CHARSET=latin1 ENCRYPTION = 'Y1; You receive the following error:
ERROR 1031 (HY000): Table storage engine for 'test_encryption2' doesn't have this option Which statement correctly explains the reason for this error?

A) The encryption feature only works with InnoDB tables. You are creating a MylSAM table, and it is causing the error.
B) You cannot use the AUTO_INCREMENT option to create an encrypted table. This is what is causing the error.
C) The test_encryption2 already exist. You are not using the correct option to recreate it and it is causing the error.
D) The term "server_name" is a reserved MySQL term. You cannot use it for the new table. This is what is causing the error.

Solutions: