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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which two statements are correct about MySQL Enterprise Edition?

A) MySQL Enterprise Edition can be installed on an Oracle Cloud Infrastructure Compute Instance.
B) MySQL configuration can be changed in /etc/lib/myi.cnf.
C) Oracle MySQL Enterprise tools & plugins are available as optional services (installation Feature Pack I/II).
D) Oracle offers 24x7, global support for MySQL Enterprise Edition products installed on Oracle Cloud Infrastructure Compute Instances.
E) MySQL Enterprise Product Suite can be installed on an Oracle Cloud Infrastructure Virtual Cloud Network.

2. MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?

A) Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
B) Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
C) Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.
D) Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';

3. Which three components can MySQL InnoDB Cluster use to Achieve database high availability?

A) MySQL Servers with Group Replication to replicate data to all members of the cluster.
B) MySQL Shell to create and administer InnoDB Clusters using the built-in AdminAPI.
C) MySQL Router to ensure client requests are load balanced and routed to the correct servers.
D) MySQL X Plugin to enable MySQL to use the X Protocol to speed up and monitor data replication.
E) MySQL Online Hot Backup to keep data consistent and always ready to be used.

4. You execute this statement:
SELECT NULL=NULL;
What is the result?

A) TRUE
B) 0
C) 1
D) FALSE
E) NULL

5. Which two are advantages of using Document Store in MySQL?

A) MySQL provides a NoSQL API to access the document store
B) MySQL provides a native data type to index PDF documents
C) MySQL can store XML as a schema-less database
D) MySQL provides a native data type to store JSON data as a document
E) MySQL is a document database allowing PDF and Word documents

Solutions: