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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which three are recommended configurations for installing and running MySQL InnoDB Cluster?

A) isolated machine resources
B) The number of machines per group must be 3, 5, 7 or 9.
C) Groups must be in even numbers; 2, 4, 6, 8.
D) Networks must be in separate regions.
E) use SSD,s for data and replication logs
F) Use Network-attached storage (NAS) for the data files.
G) smaller VM,s work best - with a maximum of eight vCPU,s and 16GB of RAM

2. Assume that MySQL Enterprise Monitor is configured to monitor MySQL 8.0.10 or a later instance. Which three features are available?

A) analyzing executed MySQL queries
B) starting and stopping the MySQL instance
C) creating e-mail alerts and SNMP traps for MySQL warnings
D) monitoring the availability of the MySQL Instance
E) tracing import and export with mysqldump
F) deploying MySQL agent on supported target operating system

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

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

4. Which features of MySQL Enterprise Edition should you use to proactively monitor and track data changes in your databases?

A) MySQL Workbench and MySQL Enterprise Firewall
B) SQL Enterprise Monitor and MySQL Enterprise Authentication
C) MySQL Audit and MySQL Workbench
D) MySQL Enterprise Monitor and MySQL Audit

5. 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) Execute the sakila-data. sqi script to populate the database
C) Use MySQL Enterprise High Availability to access one of the available data tables
D) Use mysqldump to import data from the sakila_dummy database sample data set.

Solutions: