Oracle 1Z0-921

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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

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

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

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

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

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

4. 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?

A)

B)

C)

D)

E)

5. The user 'fwuser'@'localhost% was registered with the MySQL Enterprise Firewall and was granted privileges for the SAKILA database. You executed the commands:

You want to clear the account whitelist for the * fwuser" @* localhost* user. Which statement should you run to accomplish this?

A)

B)

C)

Solutions: