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Free PDF Quiz 1Z0-921 - Marvelous MySQL 2021 Implementation Essentials Valid Study Plan

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Oracle 1Z0-921: MySQL 2021 Implementation Essentials exam is an industry-recognized certification that validates a candidate's knowledge and skills in implementing and managing MySQL databases. 1Z0-921 exam is designed for professionals who work with MySQL databases and want to demonstrate their expertise in this area. By passing 1Z0-921 Exam, candidates can prove their proficiency in installing, configuring, and administering MySQL databases.

Oracle MySQL 2021 Implementation Essentials Sample Questions (Q42-Q47):

NEW QUESTION # 42
The MySQL Replication Environment (Master and Slave) is prepared.
What two are options for connecting a Java application to the MySQL Master and Slave?

Answer: B

NEW QUESTION # 43
What is Kubernetes in the context of MySQL?
Response:

A. A database management tool for MySQL.
B. A cloud service provided by Oracle for MySQL databases.
C. A database engine for MySQL.
D. An open-source container orchestration platform.

Answer: D

NEW QUESTION # 44
An existing MySQL Database environment has been doing backup and restore in a logical way by using the mysq1dump and mysq1 client utilities. When the backup is started using mysqldump with single-transaction mode, the existing application has long wait time. When the restore is required, it takes more than three hours to restore.
What two are benefits of using mysqlbackup from MySQL Enterprise Backup in this situation?

A. mysqlbackup utilities dump the full database into a SQL file, which is imported into the mysql client in single-thread mode. mysqlbackup restores data from physical backups. Physical backup methods are faster than logical methods because they involve only file coping without conversion.
B. mysqlbackup from MySQL Enterprise Backup allows logical backup with concurrency built in to get faster backup speed and restoration speed.
C. MySQL Enterprise Backup does not back up system data so that it is much faster.
D. mysqlbackup can back up tables with the InnoDB engine without blocking. The backup is hot with InnoDB. Together with Incremental Backup, mysqlbackup from MySQL Enterprise Backup shortens the backup windows.
E. MySQL Enterprise Backup provides tape backup integration by default. It has the virtual tape option, which allows backup to tape device directly without extra third-party software integration.

Answer: A,B

NEW QUESTION # 45
By using the asynchronous MySQL Replication architecture, data can be replicated to slaves. Identify three use cases of MySQL Replication.

A. It allows backup to be done on the slave without impacting the master.
B. It provides multi-master access where the application can write and read data across the database servers.
C. MySQL Enterprise Backup will back up from Slave automatically.
D. 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.
E. MySQL Replication Connector/J (ReplicationDriver) is provided to allow read capability on slave and write capability on master.

Answer: A,C,D

NEW QUESTION # 46
What SQL keyword must be specified when creating a foreign key constraint?

A. unique PRIMARY key values for both child and parent tables
B. an index on the foreign key
C. a REFERENCES in the child table to the parent table
D. a TRIGGER on the child table for cascading delete statements
E. the SET_FOREGIN variable in the my .cnf file

Answer: D

NEW QUESTION # 47
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Ray Lee Ray Lee

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