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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. MySQL Enterprise Masking and De-identification can hide or obfuscate sensitive data, by controlling how the data appears. Which three are MySQL Enterprise Masking and De-identification functions?

A) dictionary substitution
B) strict or relaxed masking
C) whitelisting and substitution
D) random data substitution
E) misspelling

2. You need to load the MySQL Enterprise Audit plug-in at database startup and prevent the audit plug-in from being removed at run time.
Which two options should you include in the MySQL configuration file?

A) plugin-audit=ON, ALWAYS
B) plugin-load=audit_log.so
C) LOAD PLUGIN=AUDIT_LOG
D) audit-log=FORCE_PLUS_PERMANENT
E) audit_log_permanent=ON

3. Which two deployment architectures could you use for scaling-out database reads?

A) Edit the configuration file and increase the value for parallel_read_workers and reboot the server
B) Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.
C) Altering the storage engine for all tables to memory to increase performance.
D) Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.
E) Implementing a three-node, single-primary InnoDB Cluster.

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

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

5. 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 caching the entire database in memory.
D) By automatically creating indexes on frequently used columns.

Solutions: