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Oracle MySQL 2021 Implementation Essentials Sample Questions (Q62-Q67):

NEW QUESTION # 62
Which three are characteristics of the JSON data type?

A. It supports indexing directly against the JSON-defined column.
B. Key or array references enable quick read-access to look up document elements directly.
C. A set of SQL functions substantially support the SQL utilization of the data type.
D. Comparisons of JSON values are not case-sensitive.
E. It is based on the TEXT data type.
F. It validates the JSON syntax on insert or merge.

Answer: A,B,F

NEW QUESTION # 63
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. 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.
C. MySQL Enterprise Backup will back up from Slave automatically.
D. It provides multi-master access where the application can write and read data across the database servers.
E. MySQL Replication Connector/J (ReplicationDriver) is provided to allow read capability on slave and write capability on master.

Answer: A,B,C

NEW QUESTION # 64
You just installed MySQL by Using a Package Manager on Linux.
Where are the default InnoDB redo log files stored?

A. /usr/mysql
B. /var/lib/mysql/innodb
C. /usr/redo
D. /etc/my.cnf
E. /var/lib/mysql
F. /usr/bin/logs

Answer: C

NEW QUESTION # 65
Which three are requirements for MySQL Group Replication (GR)?

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

Answer: A,B,E

NEW QUESTION # 66
The user 'fwuser'@'localhost% was registered with the MySQL Enterprise Firewall and was granted privileges for the SAKILA database. You executed the commands:

You want to clear the account whitelist for the * fwuser" @* localhost* user. Which statement should you run to accomplish this?

Answer: B

NEW QUESTION # 67
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