Oracle MySQL 1Z0-921 Braindumps

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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

Which two statements are true about MySQL Enterprise Authentication?

A. MySQL Enterprise Authentication makes it more difficult to set up security because you have different sets of security policies.
B. MySQL Enterprise Authentication supports Linux Pluggable Authentication Modules (PAM).
C. MySQL Enterprise Edition automatically connects to Oracle Password Vault to verify user passwords..
D. MySQL Enterprise Authentication determines what operation the user can perform.
E. MySQL Enterprise Authentication supports Windows Active Directory.

Question 2

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

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

Question 3

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

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

Question 4

You have three machines with MySQL Databases running on Linux platform.
Which backup procedures would allow online and remote backup of the MySQL Database on the three machines to a connected Storage NFS?

A. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on all three machines.3. Start mysqlbackup on all machines to back up the database to the mounted volume using - -backup-dir.4. Validate the backup using the mysqlbackup program to ensure that the backup created is valid.
B. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on machine which is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - -backup-dir and by giving--hosts=machine1:port1, machine2:port2, machine3:port3.4. Validate the backups using the mysqlbackup program to ensure that the backups created are valid.
C. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Workbench on a separate machine, which is used to connect to the three machines to back up and restore.3. Startup MySQL backup from MySQL Workbench to back up the three databases.4. Validate the backup by using MySQL Workbench to ensure that the backup created is valid.
D. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on the machine that is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - - backup-dir and by specifying -- config-files=my1.cnf, my2.cnf, my3.cnf.my1.cnf, my2cnf, and my3.cnf are the MySQL Database Configuration files on the three machines.4. Validate the backup by using the mysqlbackup program to ensure that the backup created is valid.

Question 5

Which three are requirements for MySQL Group Replication (GR)?

A. The binary log format must be set to mixed.
B. Primary keys are required on every replicated table.
C. Data to be replicated must be stored in the InnoDB transactional storage engine.
D. The minimum number of required nodes for achieving a consensus is two.
E. GR only works with MySQL versions 8.0.12 or higher.
F. The use of global transaction identifiers is required.

Solutions: