Best Quality 1Z1-921 Exam Questions Oracle Test To Gain Brilliante Result!
Preparations of 1Z1-921 Exam 2025 Oracle MySQL Unlimited 78 Questions
To take the Oracle 1Z0-921 Exam, you must have a strong understanding of MySQL architecture, installation, configuration, and maintenance. You should also have experience in designing and implementing MySQL databases, optimizing database performance, and securing MySQL environments. Additionally, you should be familiar with MySQL tools and utilities, such as MySQL Workbench, MySQL Shell, and MySQL Router.
To take the Oracle 1Z0-921 exam, candidates need to have a strong understanding of MySQL architecture, storage engines, security, performance tuning, backup and recovery, and high availability solutions. They should also have experience working with MySQL tools such as MySQL Workbench, MySQL Shell, and MySQL Enterprise Monitor. Additionally, candidates should have knowledge of SQL and be able to write queries and create database schemas.
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NEW QUESTION # 10
Which two statements about the download of MySQL Enterprise Backup are correct?
- A. MySQL Enterprise Backup comes with MySQL Connector and is freely available for download.
- B. MySQL Enterprise Backup can be downloaded from My Oracle Support (MOS).
- C. MySQL Enterprise Backup comes with MySQL Utilities Package, which is available for download publicly on http://www.mysql.com.
- D. MySQL Enterprise Backup is a separate package from MySQL Enterprise Edition. It can be downloaded from https://edelivery.oracle.com.
- E. MySQL Enterprise Backup comes with all MySQL editions including community edition.
Answer: D,E
NEW QUESTION # 11
Which activity will take place if a table is created with both the compression and encryption options?
- A. The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.
- 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 tablespace data is encrypted first and then compression is performed.
Answer: C
NEW QUESTION # 12
You establish MySQL Enterprise Server on Oracle Cloud Infrastructure connection via Secure Shell (SSH) For accessing a new MySQL Enterprise Edition on an Oracle Cloud Infrastructure (OCI) Instance you " Add SSH key " information during the OCI instance setup. You want to use Putty from your Windows Client to install MySQL.
What are the correct steps to accomplish this?
- A. Use the provided private key for authentication.
- B. Convert the private key to ppk format first and use the new private key for authentication.
- C. Open Port 22 on your OCI Instance and configure Putty with the ssh private key.
- D. Open Port 22 on your OCI Instance and convert the private key to ppk format. This new private key can be used for authentication.
Answer: D
NEW QUESTION # 13
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. Execute the purge binary logs statement without argument.
- B. On the Master server, disable binlog by removing the --log-bin option.
- 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. Set the expire_logs_days system variable to expire binary log files automatically after a given number of days.
Answer: C,E
NEW QUESTION # 14
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 mysqldump with the - -changesonly option.
- B. Use MySQL Enterprise Backup with the - -compress option to compress the backup files and use - - compress-level to select the level of compression.
- C. Use MySQL Enterprise Backup with the - -size=compress to compress the backup file.
- D. Use mysqldump with - -incremental together with the - -compress option to back up incrementally based on previous full backup and compress the incremental backup files.
- E. Use MySQL Enterprise Backup with the - - incremental policy to back up incrementally based on previous full backup.
Answer: A,B
NEW QUESTION # 15
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 on the command line when you invoke the server.
- 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 under [mysqld] in the configuration file.
Answer: A,C
NEW QUESTION # 16
Which three components can MySQL InnoDB Cluster use to Achieve database high availability?
- A. MySQL Servers with Group Replication to replicate data to all members of the cluster.
- B. MySQL Shell to create and administer InnoDB Clusters using the built-in AdminAPI.
- C. MySQL X Plugin to enable MySQL to use the X Protocol to speed up and monitor data replication.
- D. MySQL Router to ensure client requests are load balanced and routed to the correct servers.
- E. MySQL Online Hot Backup to keep data consistent and always ready to be used.
Answer: A,B,D
NEW QUESTION # 17
Which three are characteristics of the JSON data type?
- A. It supports indexing directly against the JSON-defined column.
- B. A set of SQL functions substantially support the SQL utilization of the data type.
- C. It validates the JSON syntax on insert or merge.
- D. Comparisons of JSON values are not case-sensitive.
- E. Key or array references enable quick read-access to look up document elements directly.
- F. It is based on the TEXT data type.
Answer: A,C,E
NEW QUESTION # 18
The slave connects to the master and asks for updated records. What command was issued for this to happen?
- A. RUN SLAVE
- B. SLAVE RUN
- C. START SLAVE
- D. SLAVE START
- E. START RUN SLAVE
Answer: D
NEW QUESTION # 19
You just installed MySQL by Using a Package Manager on Linux.
Where are the default InnoDB redo log files stored?
- A. /etc/my.cnf
- B. /usr/bin/logs
- C. /var/lib/mysql
- D. /var/lib/mysql/innodb
- E. /usr/mysql
- F. /usr/redo
Answer: F
NEW QUESTION # 20
You are testing a new application and want to use data masking but the database is empty. What option will generate dummy data for you to use for testing?
- A. Alter the table with the statement: ALTER TABLE IMPORT DATA WITH data_masking plugin;
- B. Execute the sakila-data. sqi script to populate the database
- C. Use mysqldump to import data from the sakila_dummy database sample data set.
- D. Use MySQL Enterprise High Availability to access one of the available data tables
Answer: A
NEW QUESTION # 21
Which two statements are correct about MySQL Enterprise Edition?
- A. Oracle offers 24x7, global support for MySQL Enterprise Edition products installed on Oracle Cloud Infrastructure Compute Instances.
- B. Oracle MySQL Enterprise tools & plugins are available as optional services (installation Feature Pack I/II).
- C. MySQL configuration can be changed in /etc/lib/myi.cnf.
- D. MySQL Enterprise Product Suite can be installed on an Oracle Cloud Infrastructure Virtual Cloud Network.
- E. MySQL Enterprise Edition can be installed on an Oracle Cloud Infrastructure Compute Instance.
Answer: B,C
NEW QUESTION # 22
Which three prerequisites are needed for creating an Oracle Linux VM instance in the Oracle Cloud Infrastructure?
- A. ssh key pair
- B. Object Storage
- C. subnet configured on a Virtual Cloud Network (VCN)
- D. bare metal Oracle Linux shape
- E. Custom Image
- F. existing VCN
Answer: B,D,E
NEW QUESTION # 23
What are two ways in which customers can receive notifications such as outages, configuration changes, database emergencies, and other information on their Database as a Service instances?
- A. Browser pop-ups
- B. Direct support call from an Oracle representative
- C. SMS-notification tab on the dashboard
- D. Application-to-application messaging
- E. Email
Answer: C,E
NEW QUESTION # 24
Which features of MySQL Enterprise Edition should you use to proactively monitor and track data changes in your databases?
- A. SQL Enterprise Monitor and MySQL Enterprise Authentication
- B. MySQL Audit and MySQL Workbench
- C. MySQL Workbench and MySQL Enterprise Firewall
- D. MySQL Enterprise Monitor and MySQL Audit
Answer: A
NEW QUESTION # 25
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?
- A. plugin-audit=ON, ALWAYS
- B. audit_log_permanent=ON
- C. audit-log=FORCE_PLUS_PERMANENT
- D. plugin-load=audit_log.so
- E. LOAD PLUGIN=AUDIT_LOG
Answer: B,C
NEW QUESTION # 26
You have three machines with MySQL Databases running on Linux platform.
Which backup procedures would allow online and remote backup of the MySQL Database on the three machines to a connected Storage NFS?
- A. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on the machine that is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - - backup-dir and by specifying -- config-files=my1.cnf, my2.cnf, my3.cnf.my1.cnf, my2cnf, and my3.cnf are the MySQL Database Configuration files on the three machines.4. Validate the backup by using the mysqlbackup program to ensure that the backup created is valid.
- B. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on all three machines.3. Start mysqlbackup on all machines to back up the database to the mounted volume using - -backup-dir.4. Validate the backup using the mysqlbackup program to ensure that the backup created is valid.
- C. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on machine which is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - -backup-dir and by giving--hosts=machine1:port1, machine2:port2, machine3:port3.4. Validate the backups using the mysqlbackup program to ensure that the backups created are valid.
- D. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Workbench on a separate machine, which is used to connect to the three machines to back up and restore.3. Startup MySQL backup from MySQL Workbench to back up the three databases.4. Validate the backup by using MySQL Workbench to ensure that the backup created is valid.
Answer: B
NEW QUESTION # 27
You want to create the user named jenny for any host server with the password secretpassi23! and the password is expired? Which command should you use?
- A. CREATE USER ,jenny,@,localhost, IDENTIFIED BY (,SecretPass123!,,,256,, Expired)
- B. CREATE USER ,jenny *@,localhost, IDENTIFIED WITH HASH PASSWORD(,SecretPass123!,)
- C. CREATE USER ,jenny,@'%, WITH HASHED(password,,SecretPass123!,), PASSWORD EXPIRE
- D. CREATE USER ,jenny,@,%, IDENTIFIED WITH sha256_password BY 'SecretPass123!,;
- E. CREATE USER ,jenny,0,%t IDENTIFIED BY ,SecretPass123!, PASSWORD EXPIRE;
Answer: A
NEW QUESTION # 28
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