Online Access Free Oracle.1Z0-920.v2021-12-16.q22 Practice Test (Page 2)

1Z0-920 Exam Question 1

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 Online Hot Backup to keep data consistent and always ready to be used.

C.MySQL Shell to create and administer InnoDB Clusters using the built-in AdminAPI.

D.MySQL X Plugin to enable MySQL to use the X Protocol to speed up and monitor data replication.

E.MySQL Router to ensure client requests are load balanced and routed to the correct servers.

1Z0-920 Exam Question 2

Which two deployment architectures could you use for scaling-out database reads?

A.Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.

B.Altering the storage engine for all tables to memory to increase performance.

C.Implementing a three-node, single-primary InnoDB Cluster.

D.Edit the configuration file and increase the value for parallel_read_workers and reboot the server

E.Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.

1Z0-920 Exam Question 3

You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?

A.The table statistics will be stored.

B.The table will be checked for errors and repaired.

C.The table will be optimized and replicated.

D.The table storage space will be reduced.

1Z0-920 Exam Question 4

Which statement will display the status of the partitioning plug-in?

A.SHOW PLUGINS WHERE Name= 'partition';

B.SHOW STATUS PLUGINS WHERE Name= 'PARTITIONING';

C.SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS FROM INFOMRATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME= 'partition';

D.USE SYS SCHEMA; SHOW PLUGINS STATUS;

1Z0-920 Exam Question 5

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 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.

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 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.

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 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.

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 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.

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