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The Oracle 1Z0-921 certification exam is one of the valuable credentials designed to demonstrate a candidate's technical expertise in information technology. They can remain current and competitive in the highly competitive market with the 1Z0-921 certificate. For novices as well as seasoned professionals, the MySQL 2021 Implementation Essentials Questions provide an excellent opportunity to not only validate their skills but also advance their careers.

Oracle 1Z0-921 Exam consists of 70 multiple-choice questions and has a time limit of 105 minutes. To pass the exam, candidates need to score at least 63%. 1Z0-921 exam is available in English and Japanese languages, and candidates can take it at any authorized Oracle testing center or online through the Oracle Online Exam Proctoring platform.

Oracle MySQL 2021 Implementation Essentials Sample Questions (Q28-Q33):

NEW QUESTION # 28
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. --uncompress-and-apply-log
B. --uncompress
C. --copy-back-and-apply-log
D. --decompress
E. --apply-log-and-copy-back

Answer: B,C

NEW QUESTION # 29
MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?

A. Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
B. Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';
C. Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
D. Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.

Answer: C,D

NEW QUESTION # 30
You want to create an encrypted table. So, you enter this command:
CREATE TABLE 'test_encryption2% (
'id' int(10) unsigned NOT NULL AUTO_INCREMENT,
'server_name' varchar(15) NOT NULL,
PRIMARY KEY ('id') ) ENGINE=MYISAM AUTO_INCREMENT=l DEFAULT CHARSET=latin1 ENCRYPTION = 'Y1; You receive the following error:
ERROR 1031 (HY000): Table storage engine for 'test_encryption2' doesn't have this option Which statement correctly explains the reason for this error?

A. The encryption feature only works with InnoDB tables. You are creating a MylSAM table, and it is causing the error.
B. The test_encryption2 already exist. You are not using the correct option to recreate it and it is causing the error.
C. The term "server_name" is a reserved MySQL term. You cannot use it for the new table. This is what is causing the error.
D. You cannot use the AUTO_INCREMENT option to create an encrypted table. This is what is causing the error.

Answer: A

NEW QUESTION # 31
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 t2 table is created.
B. Both the tables, t1 and t2, are not created because there is an explicit ROLLBACK.
C. Only the t1 table is created.
D. Both the tables, t1 and t2, are created.

Answer: D

NEW QUESTION # 32
Which best describes database horizontal scale-out architecture deployment in MySQL in a read-heavy environment?

A. Adding more MySQL servers and sharing the same dacadir on a shared storage component like NFS.
B. Allocating more CPU to the database instance to improve throughput performance.
C. Deploy MySQL read-only slaves utilizing replication so that the slaves can be used for reads.
D. Increasing the storage capacity so that the database can store more data to scale.
E. Increasing the memory capacity so that there is a larger pooling buffer to increase the database read performance.

Answer: D

NEW QUESTION # 33
......

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1Z0-921 Dump Torrent | 1Z0-921 Valid Real Test

100% Pass Quiz Oracle - 1Z0-921 –Professional Dump Torrent

Oracle MySQL 2021 Implementation Essentials Sample Questions (Q28-Q33):

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