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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which two statements are true about the creation or use of a Virtual Cloud Network (VCN)?

A) You can connect directly to the VCN without a define subnet.
B) You must have an Internet gateway to connect to a public address on an Oracle Linux instance.
C) You must have an IPSec VPN to connect to an Oracle Linux instance.
D) You can connect directly to an instance over the internet, without a public IP address.
E) Your instance does not have a public IP address, so you cannot connect with a public subnet.

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

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

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

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

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

A)

B)

C)

D)

5. 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 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.
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 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.
D) 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.
E) MySQL Enterprise Backup does not back up system data so that it is much faster.

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