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Oracle 1Z0-921 certification exam is a must-have for professionals who want to enhance their career prospects in the database management industry. MySQL 2021 Implementation Essentials certification validates their expertise in working with the MySQL database management system and demonstrates their commitment to professional development. MySQL 2021 Implementation Essentials certification is also beneficial for organizations that use MySQL as their primary database management system, as it ensures that their employees have the necessary skills to manage and maintain their MySQL databases effectively.

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Oracle 1Z0-921 exam is a computer-based test that consists of 60 multiple-choice questions. Candidates have 105 minutes to complete the exam, and they must score a minimum of 63% to pass. 1Z1-921 Exam is available in several languages, including English, Japanese, Simplified Chinese, and Korean.

Oracle MySQL 2021 Implementation Essentials Sample Questions (Q68-Q73):

NEW QUESTION # 68
The replication for a Master and Slave MySQL Servers is up and running. The disk space for Master Server is continuously growing. The binlog size keeps growing. Which two methods can fix the issue?

A. Set the expire_logs_days system variable to expire binary log files automatically after a given number of days.
B. Execute the purge binary logs statement without argument.
C. To safely purge binary log files, perform these steps:
D. Delete all binlog files manually on the file system to release storage spaces.
E. On the Master server, disable binlog by removing the --log-bin option.

Answer: A,C

NEW QUESTION # 69
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. --decompress
B. --apply-log-and-copy-back
C. --uncompress
D. --uncompress-and-apply-log
E. --copy-back-and-apply-log

Answer: C,E

NEW QUESTION # 70
You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?

A. The table storage space will be reduced.
B. The table will be checked for errors and repaired.
C. The table will be optimized and replicated.
D. The table statistics will be stored.

Answer: C

NEW QUESTION # 71
Which activity will take place if a table is created with both the compression and encryption options?

A. The tablespace data is encrypted first and then compression is performed.
B. The compression is performed, the ''data_at_rest_flag" is turned on and the tablespace data is encrypted.
C. The compression is performed before tablespace data is encrypted.
D. The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.

Answer: C

NEW QUESTION # 72
You have a backup image file that is backed up using MySQL Enterprise Backup with the -compress option:
/home/mysq1/backup/full/mybackup/myimage. Img

You are required to perform a database restore to a new machine to provision the database. Which command can provision the new database in the datadir as /home/mysql/data/MEB?

Answer: E

NEW QUESTION # 73
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