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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. By using the asynchronous MySQL Replication architecture, data can be replicated to slaves. Identify three use cases of MySQL Replication.

A) You can create a slave server for reporting applications, which get only read access to the slave servers. It off-loads the master server. Additional servers allow different database server configuration.
B) It allows backup to be done on the slave without impacting the master.
C) It provides multi-master access where the application can write and read data across the database servers.
D) MySQL Enterprise Backup will back up from Slave automatically.
E) MySQL Replication Connector/J (ReplicationDriver) is provided to allow read capability on slave and write capability on master.

2. Which best describes database horizontal scale-out architecture deployment in MySQL in a read-heavy environment?

A) Increasing the storage capacity so that the database can store more data to scale.
B) Deploy MySQL read-only slaves utilizing replication so that the slaves can be used for reads.
C) Increasing the memory capacity so that there is a larger pooling buffer to increase the database read performance.
D) Adding more MySQL servers and sharing the same dacadir on a shared storage component like NFS.
E) Allocating more CPU to the database instance to improve throughput performance.

3. Which component of MySQL Enterprise Monitor provides trend analysis and capacity planning for MySQL databases?
Response:

A) MySQL Advisors
B) MySQL Query Analyzer
C) MySQL Dashboard
D) Query Analyzer

4. After installing MySQL 8.0, you initialize the data directory with the --initialize command. Which two are places where you can find the root password?

A) The root password displayed on the screen via a [warning] message.
B) The root password is not given and is blank. You must manually set the root password.
C) As root, execute the show password command by using the SHA-256 password encryption plug-in.
D) The root password inserted in the error log set by the --log-error=[file_name] variable
E) The root_pw variable stored in the mysq1.install table.

5. Which Oracle product is certified to work with MySQL Enterprise Edition?

A) Oracle Data Pump
B) Oracle Enterprise Backup
C) Oracle Enterprise Manager
D) Oracle Application Express

Solutions: