Oracle Oracle MySQL 1Z0-921

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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. When should you perform a backup in a MySQL database?
Response:

A) After every successful query execution.
B) Only during scheduled maintenance windows.
C) After critical data updates or before making significant changes to the database.
D) Only when the database size exceeds a certain limit.

2. When using an Oracle Cloud Infrastructure Compute Instance with MySQL Enterprise Edition installed, you have two choices for backup destinations. What are these two choices?

A) Flash-archive recovery area
B) Cloud tape library
C) Both Cloud storage and local storage
D) Cloud storage only

3. Which three statements are true about MySQL Enterprise Backup?

A) It cannot back up encrypted tablespaces.
B) It performs hot or warm backups.
C) It provides the ability to create incremental backups.
D) It enables you to take non-locking backups.
E) It performs logical backups.

4. Consider this SQL statement which is using the innoDB storage engine and with global AUTOCOMMIT = 1:

What is the result after issuing the rollback command?

A) Only the t1 table is created.
B) Both the tables, t1 and t2, are created.
C) Both the tables, t1 and t2, are not created because there is an explicit ROLLBACK.
D) Only the t2 table is created.

5. You set up a compressed full backup file from mysqlbackup by using the --compress option for MySQL Database backup. You are required to restore the database and apply the log.
Which two options should you add to the mysqlbackup to achieve the restoration of the database?

A) --apply-log-and-copy-back
B) --uncompress-and-apply-log
C) --copy-back-and-apply-log
D) --decompress
E) --uncompress

Solutions: