1Z0-921 TESTKING LEARNING MATERIALS, 1Z0-921 VALID TEST TIPS

1Z0-921 Testking Learning Materials, 1Z0-921 Valid Test Tips

1Z0-921 Testking Learning Materials, 1Z0-921 Valid Test Tips

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Oracle MySQL 2021 Implementation Essentials Sample Questions (Q16-Q21):

NEW QUESTION # 16
The MySQL Enterprise Monitor Agent requires a user configured in each MySQL instance that is being monitored with suitable privileges to collect information about the server.
Which statement is correct?

  • A. The super privilege is required when starting, stopping, or restarting monitored MySQL databases.
  • B. MySQL Enterprise Monitor creates the required users automatically.
  • C. Monitoring metrics need super and root privileges because they are not available for a less-privileged user.
  • D. The super privilege is required when creating and populating the inventory table, as well as running statements such as show master logs or SHOW ENGINE INNODB STATUS.

Answer: D


NEW QUESTION # 17
Which three are characteristics of the JSON data type?

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

Answer: B,E,F


NEW QUESTION # 18
You need to load the MySQL Enterprise Audit plug-in at database startup and prevent the audit plug-in from being removed at run time.
Which two options should you include in the MySQL configuration file?

  • A. LOAD PLUGIN=AUDIT_LOG
  • B. plugin-audit=ON, ALWAYS
  • C. audit-log=FORCE_PLUS_PERMANENT
  • D. plugin-load=audit_log.so
  • E. audit_log_permanent=ON

Answer: C,E


NEW QUESTION # 19
Which best describes database horizontal scale-out architecture deployment in MySQL in a read-heavy environment?

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

Answer: E


NEW QUESTION # 20
MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?

  • A. Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';
  • B. Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
  • C. Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.
  • D. Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.

Answer: B,C


NEW QUESTION # 21
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