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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

What SQL keyword must be specified when creating a foreign key constraint?

A. unique PRIMARY key values for both child and parent tables
B. a TRIGGER on the child table for cascading delete statements
C. an index on the foreign key
D. a REFERENCES in the child table to the parent table
E. the SET_FOREGIN variable in the my .cnf file

Question 2

Which two statements about the download of MySQL Enterprise Backup are correct?

A. MySQL Enterprise Backup comes with all MySQL editions including community edition.
B. MySQL Enterprise Backup can be downloaded from My Oracle Support (MOS).
C. MySQL Enterprise Backup is a separate package from MySQL Enterprise Edition. It can be downloaded from https://edelivery.oracle.com.
D. MySQL Enterprise Backup comes with MySQL Utilities Package, which is available for download publicly on http://www.mysql.com.
E. MySQL Enterprise Backup comes with MySQL Connector and is freely available for download.

Question 3

Which two are advantages of using Document Store in MySQL?

A. MySQL provides a native data type to index PDF documents
B. MySQL is a document database allowing PDF and Word documents
C. MySQL provides a native data type to store JSON data as a document
D. MySQL provides a NoSQL API to access the document store
E. MySQL can store XML as a schema-less database

Question 4

What are two ways in which customers can receive notifications such as outages, configuration changes, database emergencies, and other information on their Database as a Service instances?

A. SMS-notification tab on the dashboard
B. Email
C. Direct support call from an Oracle representative
D. Application-to-application messaging
E. Browser pop-ups

Question 5

How would you restrict a user Joe from accessing all MySQL database objects?

A. REVOKE ALL PRIVILEGES, GRANT OPTION FROM ,joe,@,%,;
B. Insert Joe,s name into the mysql.user_restriction cable, and issue the FLUSH PRIVILEGES command.
C. UPDATE mysql.user SET Password=PASSWORD(,Invalid,) WHERE User=,joe';
D. CREATE USER ,joe'@,0.0.0.0, SET Password=PASSWORD(,% ! %,)
E. CREATE USER , joe,@1' %' DENY ALL PRIVILEGES

Solutions: