Get 100% Success with Latest Oracle MySQL 1Z0-921 Exam Dumps Jan 24, 2025 [Q21-Q45]

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Get 100% Success with Latest Oracle MySQL 1Z0-921 Exam Dumps Jan 24, 2025

The Best 1Z0-921 Exam Study Material and Preparation Test Question Dumps

QUESTION 21
You have a MySQL Server instance (running with Port# 3306) monitored by the Service Manager in MySQL Enterprise Monitor. You cloned the MySQL Database instance and configured it to be a replicated MySQL instance as Slave using Port# 3316 on the same machine as the Master Server. The replication configuration is working correctly. The Master and Slave Servers are running.
You are trying to add the newly created MySQL Slave instance to the Monitor. The Service Manager in MySQL Enterprise Monitor notifies you that the new instance is successfully added; however, it is not added correctly at the newly added configuration points to the old Master monitored items. The Monitor shows only one monitored MySQL instance for Master and Slave.
Which two are possible reasons for this problem?

The SLAVE and MASTER instances are started with the same configured value for the option – – monitor_server_uuid.

The MASTER and SLAVE are grouped as one instance for monitoring.

The mysql.inventory table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.

The mysql.instance table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.

All the MySQL instances (Master and Slave) have the same server_uuid in <datadir>/auto.cnf.

QUESTION 22
You just installed MySQL by Using a Package Manager on Linux.
Where are the default InnoDB redo log files stored?

/usr/mysql

/var/lib/mysql

/var/lib/mysql/innodb

/usr/bin/logs

/usr/redo

/etc/my.cnf

QUESTION 23
Which statement is used to create a new MySQL database?
Response:

CREATE DATABASE

CREATE SCHEMA

CREATE TABLE

NEW DATABASE

QUESTION 24
How does MySQL HeatWave improve query performance?
Response:

By offloading analytics queries to an in-memory, highly parallel processing engine.

By caching the entire database in memory.

By automatically creating indexes on frequently used columns.

By replicating data across multiple servers.

QUESTION 25
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?

Go to the configuration section (Users) and create a new user according to the existing users of your new MySQL instances.

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.

Go to the configuration section (Advisors) and create a new advisor rule for new MySQL instances based on the MySQL Advisor Wizard.

Go to the configuration section (MEM) and configure the default login credentials.

QUESTION 26
Which Oracle product is certified to work with MySQL Enterprise Edition?

Oracle Enterprise Backup

Oracle Data Pump

Oracle Enterprise Manager

Oracle Application Express

QUESTION 27
Which component of MySQL Enterprise Monitor provides trend analysis and capacity planning for MySQL databases?
Response:

MySQL Advisors

Query Analyzer

MySQL Dashboard

MySQL Query Analyzer

QUESTION 28
What are Security Lists in Oracle Cloud Infrastructure?

They allow administrators access to applications in the cloud and external servers.

They are user-role designations that assign rights to certain internal users and external users.

They are essentially firewall rules that help control traffic between OCI instances.

Security lists are data encryption levels that control who can see the data.

They contain rules established by HIPAA for securing end-user data.

QUESTION 29
Which two statements are correct about MySQL Enterprise Edition?

MySQL configuration can be changed in /etc/lib/myi.cnf.

MySQL Enterprise Edition can be installed on an Oracle Cloud Infrastructure Compute Instance.

Oracle MySQL Enterprise tools & plugins are available as optional services (installation Feature Pack I/II).

MySQL Enterprise Product Suite can be installed on an Oracle Cloud Infrastructure Virtual Cloud Network.

Oracle offers 24×7, global support for MySQL Enterprise Edition products installed on Oracle Cloud Infrastructure Compute Instances.

QUESTION 30
Which three installation options are available for installing the MySQL Enterprise Monitor/Agent on Linux?

A GUI for installing MySQL Enterprise Monitor, Agent, and a MySQL Repository database

A CLI-based wizard MySQL Enterprise Monitor, Agent, and a MySQL Repository database

A script (with an option file) for installing MySQL Enterprise Monitor, Agent, and a MySQL Repository database

A MySQL Enterprise Monitor to remotely deploy the MySQL Monitor Agent

A browser-based wizard to remotely deploy the MySQL Monitor Agent

QUESTION 31
Which features of MySQL Enterprise Edition should you use to proactively monitor and track data changes in your databases?

MySQL Enterprise Monitor and MySQL Audit

MySQL Workbench and MySQL Enterprise Firewall

MySQL Audit and MySQL Workbench

SQL Enterprise Monitor and MySQL Enterprise Authentication

QUESTION 32
You execute this statement:
SELECT NULL=NULL;
What is the result?

FALSE

NULL

TRUE

QUESTION 33
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?

Both the tables, t1 and t2, are created.

Both the tables, t1 and t2, are not created because there is an explicit ROLLBACK.

Only the t2 table is created.

Only the t1 table is created.

QUESTION 34
You need to load the MySQL Enterprise Audit plug-in at database startup and prevent the audit plug-in from being removed at run time.
Which two options should you include in the MySQL configuration file?

audit_log_permanent=ON

audit-log=FORCE_PLUS_PERMANENT

plugin-load=audit_log.so

plugin-audit=ON, ALWAYS

LOAD PLUGIN=AUDIT_LOG

QUESTION 35
Which two deployment architectures could you use for scaling-out database reads?

Implementing a three-node, single-primary InnoDB Cluster.

Edit the configuration file and increase the value for parallel_read_workers and reboot the server

Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.

Altering the storage engine for all tables to memory to increase performance.

Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.

QUESTION 36
Which two statements are true about MySQL Enterprise Authentication?

MySQL Enterprise Authentication makes it more difficult to set up security because you have different sets of security policies.

MySQL Enterprise Authentication determines what operation the user can perform.

MySQL Enterprise Authentication supports Linux Pluggable Authentication Modules (PAM).

MySQL Enterprise Authentication supports Windows Active Directory.

MySQL Enterprise Edition automatically connects to Oracle Password Vault to verify user passwords..

QUESTION 37
Which statement would you use to remove the population column from the city table?

ALTER TABLE city DROP population;

DELETE population FROM city;

ALTER TABLE city DELETE population;

ALTER TABLE city LESS population;

DROP population FROM city;

QUESTION 38
An Oracle Cloud Infrastructure customer already has many database instances configured and running in the cloud; however, they are reporting that they are unable to create any more instances.
What could be the problem?

The customer does not have proper user rights.

The customer reached the database instance limit of 32.

The customer account might have reached resource quota/limits.

The customer has not kept up with their patching requirements; new instances cannot be created unless the majority or the template of existing instances are up-to-date.

QUESTION 39
Which two statements about the download of MySQL Enterprise Backup are correct?

MySQL Enterprise Backup can be downloaded from My Oracle Support (MOS).

MySQL Enterprise Backup comes with MySQL Utilities Package, which is available for download publicly on http://www.mysql.com.

MySQL Enterprise Backup is a separate package from MySQL Enterprise Edition. It can be downloaded from https://edelivery.oracle.com.

MySQL Enterprise Backup comes with all MySQL editions including community edition.

MySQL Enterprise Backup comes with MySQL Connector and is freely available for download.

QUESTION 40
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?

On the Master server, disable binlog by removing the –log-bin option.

Set the expire_logs_days system variable to expire binary log files automatically after a given number of days.

To safely purge binary log files, perform these steps:

Execute the purge binary logs statement without argument.

Delete all binlog files manually on the file system to release storage spaces.

QUESTION 41
Which three are recommended configurations for installing and running MySQL InnoDB Cluster?

The number of machines per group must be 3, 5, 7 or 9.

use SSD,s for data and replication logs

Groups must be in even numbers; 2, 4, 6, 8.

isolated machine resources

Use Network-attached storage (NAS) for the data files.

smaller VM,s work best – with a maximum of eight vCPU,s and 16GB of RAM

Networks must be in separate regions.

QUESTION 42
Which three are levels in which MySQL Enterprise Monitor provides access control?

MySQL Enterprise Operations: the right to start/stop/restart/update MySQL Enterprise Monitor Services

Asset visibility: the rights to access data collected from hosts or MySQL instances

Application administration: the rights to view or change the MySQL Enterprise Monitor configuration

Specific data access: the rights to view specific types of potentially sensitive data

MySQL Enterprise Operations: the right to deploy the necessary MySQL Enterprise Agent

QUESTION 43
Which of the following statements is true regarding MySQL user account privileges?
Response:

A user with the SUPER privilege can only read data from the database.

The GRANT option allows a user to revoke privileges from other users.

The USAGE privilege allows a user to connect to the MySQL server but grants no other privileges.

The RELOAD privilege allows a user to delete data from a table.

QUESTION 44
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?

QUESTION 45
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?

MySQL Enterprise Backup does not back up system data so that it is much faster.

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.

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.

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.

mysqlbackup from MySQL Enterprise Backup allows logical backup with concurrency built in to get faster backup speed and restoration speed.

Oracle 1Z0-921 Exam consists of 70 multiple-choice and multiple-answer questions that must be completed within 105 minutes. 1Z0-921 exam covers a wide range of topics, including database architecture, installation and configuration, security, performance tuning, backup and recovery, and high availability. Candidates who pass the exam will earn the Oracle Certified Specialist MySQL 2021 Implementation Essentials certification, which demonstrates their proficiency in MySQL database administration.

Oracle 1Z0-921 Exam covers a wide range of topics related to MySQL, including database architecture, installation and configuration, security, backup and recovery, performance tuning, and high availability. 1Z0-921 exam consists of 70 multiple-choice questions that must be completed within 105 minutes. The passing score for the exam is 63%.

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