Oracle 1Z0-921 Exam : MySQL 2021 Implementation Essentials

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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

Which statement is used to create a new MySQL database?
Response:

A. CREATE TABLE
B. CREATE DATABASE
C. CREATE SCHEMA
D. NEW DATABASE

Question 2

An existing MySQL Database environment has been doing backup and restore in a logical way by using the mysq1dump and mysq1 client utilities. When the backup is started using mysqldump with single-transaction mode, the existing application has long wait time. When the restore is required, it takes more than three hours to restore.
What two are benefits of using mysqlbackup from MySQL Enterprise Backup in this situation?

A. MySQL Enterprise Backup does not back up system data so that it is much faster.
B. mysqlbackup can back up tables with the InnoDB engine without blocking. The backup is hot with InnoDB. Together with Incremental Backup, mysqlbackup from MySQL Enterprise Backup shortens the backup windows.
C. mysqlbackup utilities dump the full database into a SQL file, which is imported into the mysql client in single-thread mode. mysqlbackup restores data from physical backups. Physical backup methods are faster than logical methods because they involve only file coping without conversion.
D. MySQL Enterprise Backup provides tape backup integration by default. It has the virtual tape option, which allows backup to tape device directly without extra third-party software integration.
E. mysqlbackup from MySQL Enterprise Backup allows logical backup with concurrency built in to get faster backup speed and restoration speed.

Question 3

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. --copy-back-and-apply-log
C. --uncompress
D. --decompress
E. --uncompress-and-apply-log

Question 4

You want to change the default behavior of MySQL Enterprise Monitor (MEM). New instances detected by a MEM agent should automatically monitor discovered instances.
How can you change the Advisor Setting?

A. Go to the configuration section (Advisors) and edit the default settings of the MySQL Process Discovery according to the existing users of your new MySQL instances.
B. Go to the configuration section (Advisors) and create a new advisor rule for new MySQL instances based on the MySQL Advisor Wizard.
C. Go to the configuration section (MEM) and configure the default login credentials.
D. Go to the configuration section (Users) and create a new user according to the existing users of your new MySQL instances.

Question 5

Which four authentication protocols are allowed when using MySQL Enterprise Authentication?

A. Simple Authentication and Security Layer
B. connections through the local host via the UNIX socket file
C. Native Windows services
D. authentication via Pluggable Authentication Modules (PAMs)
E. SECURID authentication and authorization identity
F. authentication using SHA-256 password hashing

Solutions: