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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

Which statement would you use to remove the population column from the city table?

A. ALTER TABLE city DROP population;
B. DELETE population FROM city;
C. DROP population FROM city;
D. ALTER TABLE city DELETE population;
E. ALTER TABLE city LESS population;

Question 2

Which three are characteristics of the JSON data type?

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

Question 3

Which three are levels in which MySQL Enterprise Monitor provides access control?

A. MySQL Enterprise Operations: the right to deploy the necessary MySQL Enterprise Agent
B. Specific data access: the rights to view specific types of potentially sensitive data
C. MySQL Enterprise Operations: the right to start/stop/restart/update MySQL Enterprise Monitor Services
D. Application administration: the rights to view or change the MySQL Enterprise Monitor configuration
E. Asset visibility: the rights to access data collected from hosts or MySQL instances

Question 4

Which is a correct example of creating an Enterprise Encryption function?

A. INSERT INTO t1 (key_co1) FUNCTION(CREATE_ASYMMETRIC_PRIV_KEY(,RSA,, 1024));
B. SET @function = CREATE_ASYMMETRIC_PRIV_KEY(@algo, @key_len);
C. CREATE FUNCTION asymmetric_decrypt RETURNS STRING SONAME ,openss1_udf.so,;
D. VALIDATE FUNCTION create_asymmetric_priv_key WITH ,openssl_udf.so';

Question 5

You have been using mysqldump for logical backups of your MySQL databases. Your MySQL database size has been growing. Which two options can reduce the backup size and speed up the backup time?

A. Use mysqldump with the - -changesonly option.
B. Use MySQL Enterprise Backup with the - -compress option to compress the backup files and use - - compress-level to select the level of compression.
C. Use MySQL Enterprise Backup with the - -size=compress to compress the backup file.
D. Use MySQL Enterprise Backup with the - - incremental policy to back up incrementally based on previous full backup.
E. Use mysqldump with - -incremental together with the - -compress option to back up incrementally based on previous full backup and compress the incremental backup files.

Solutions: