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Updated: Sep 05, 2025
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Oracle MySQL 2021 Implementation Essentials Sample Questions:
1. What is Kubernetes in the context of MySQL?
Response:
A) A cloud service provided by Oracle for MySQL databases.
B) A database management tool for MySQL.
C) A database engine for MySQL.
D) An open-source container orchestration platform.
2. You execute this statement:
SELECT NULL=NULL;
What is the result?
A) NULL
B) FALSE
C) TRUE
D) 0
E) 1
3. 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 t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;
D) SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;
4. How does MySQL HeatWave improve query performance?
Response:
A) By offloading analytics queries to an in-memory, highly parallel processing engine.
B) By caching the entire database in memory.
C) By automatically creating indexes on frequently used columns.
D) By replicating data across multiple servers.
5. Assume that MySQL Enterprise Monitor is configured to monitor MySQL 8.0.10 or a later instance. Which three features are available?
A) creating e-mail alerts and SNMP traps for MySQL warnings
B) deploying MySQL agent on supported target operating system
C) starting and stopping the MySQL instance
D) monitoring the availability of the MySQL Instance
E) analyzing executed MySQL queries
F) tracing import and export with mysqldump
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: A,B,F |
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