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Practice Test for 1Z1-921 Certification Real 2025 Mock Exam

NEW QUESTION # 41
You just installed MySQL by Using a Package Manager on Linux.
Where are the default InnoDB redo log files stored?

• A. /var/lib/mysql
• B. /var/lib/mysql/innodb
• C. /usr/mysql
• D. /usr/redo
• E. /usr/bin/logs
• F. /etc/my.cnf

Answer: D

NEW QUESTION # 42
What is Kubernetes in the context of MySQL?
Response:

• A. A database engine for MySQL.
• B. A database management tool for MySQL.
• C. A cloud service provided by Oracle for MySQL databases.
• D. An open-source container orchestration platform.

Answer: D

NEW QUESTION # 43
What SQL keyword must be specified when creating a foreign key constraint?

• A. an index on the foreign key
• B. a REFERENCES in the child table to the parent table
• C. unique PRIMARY key values for both child and parent tables
• D. a TRIGGER on the child table for cascading delete statements
• E. the SET_FOREGIN variable in the my .cnf file

Answer: D

NEW QUESTION # 44
Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?

• A. You forgot to enable port 3306.
• B. The opc user can be used to access MySQL only with the created SSH-Key.
• C. The OCI instance is still in the "creation" process.
• D. Only root is allowed to access from non-localhost.
• E. You forgot to create the correct SSL/TLC certificate during the setup process.

Answer: A

NEW QUESTION # 45
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?

• A. The mysql.instance table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
• B. All the MySQL instances (Master and Slave) have the same server_uuid in <datadir>/auto.cnf.
• C. The MASTER and SLAVE are grouped as one instance for monitoring.
• D. The mysql.inventory table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
• E. The SLAVE and MASTER instances are started with the same configured value for the option - - monitor_server_uuid.

Answer: A,C

NEW QUESTION # 46
Which two deployment architectures could you use for scaling-out database reads?

• A. Edit the configuration file and increase the value for parallel_read_workers and reboot the server
• B. Implementing a three-node, single-primary InnoDB Cluster.
• C. Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.
• D. Altering the storage engine for all tables to memory to increase performance.
• E. Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.

Answer: B,D

NEW QUESTION # 47
Which MySQL Enterprise Edition plug-in replaces real values with substitutes?

• A. MySQL Enterprise Transparent Data Encryption (TDE)
• B. MySQL Enterprise Data Masking and De-identification
• C. MySQL Enterprise Audit
• D. MySQL Enterprise No-Login Authentication
• E. MySQL Enterprise Scalability

Answer: B

NEW QUESTION # 48
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?

• A. The customer account might have reached resource quota/limits.
• B. 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.
• C. The customer does not have proper user rights.
• D. The customer reached the database instance limit of 32.

Answer: D

NEW QUESTION # 49
Which is a correct example of creating an Enterprise Encryption function?

• A. CREATE FUNCTION asymmetric_decrypt RETURNS STRING SONAME ,openss1_udf.so,;
• B. SET @function = CREATE_ASYMMETRIC_PRIV_KEY(@algo, @key_len);
• C. VALIDATE FUNCTION create_asymmetric_priv_key WITH ,openssl_udf.so';
• D. INSERT INTO t1 (key_co1) FUNCTION(CREATE_ASYMMETRIC_PRIV_KEY(,RSA,, 1024));

Answer: A

NEW QUESTION # 50
When should you perform a backup in a MySQL database?
Response:

• A. Only during scheduled maintenance windows.
• B. After critical data updates or before making significant changes to the database.
• C. Only when the database size exceeds a certain limit.
• D. After every successful query execution.

Answer: B

NEW QUESTION # 51
Which two are advantages of using Document Store in MySQL?

• A. MySQL is a document database allowing PDF and Word documents
• B. MySQL provides a native data type to index PDF documents
• C. MySQL provides a native data type to store JSON data as a document
• D. MySQL provides a NoSQL API to access the document store
• E. MySQL can store XML as a schema-less database

Answer: D,E

NEW QUESTION # 52
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
• B. --decompress
• C. --copy-back-and-apply-log
• D. --uncompress-and-apply-log
• E. --apply-log-and-copy-back

Answer: A,C

NEW QUESTION # 53
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 is a separate package from MySQL Enterprise Edition. It can be downloaded from https://edelivery.oracle.com.
• C. MySQL Enterprise Backup comes with all MySQL editions including community edition.
• D. MySQL Enterprise Backup comes with MySQL Utilities Package, which is available for download publicly on http://www.mysql.com.
• E. MySQL Enterprise Backup can be downloaded from My Oracle Support (MOS).

Answer: B,C

NEW QUESTION # 54
What three are ways to export and import data in MySQL Workbench?

• A. Table Data Export and Import Wizard
• B. Binary Data Export and Import Wizard
• C. SQL Data Export and Import Wizard
• D. Backup Data Export and Import Wizard
• E. Result Data Export and Import
• F. Data Modeling Import Export Wizard

Answer: A,C,E

NEW QUESTION # 55
Which two statements are true about MySQL Enterprise Authentication?

• A. MySQL Enterprise Edition automatically connects to Oracle Password Vault to verify user passwords..
• B. MySQL Enterprise Authentication supports Linux Pluggable Authentication Modules (PAM).
• C. MySQL Enterprise Authentication supports Windows Active Directory.
• D. MySQL Enterprise Authentication determines what operation the user can perform.
• E. MySQL Enterprise Authentication makes it more difficult to set up security because you have different sets of security policies.

Answer: B,C

NEW QUESTION # 56
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,@,%, IDENTIFIED WITH sha256_password BY 'SecretPass123!,;
• C. CREATE USER ,jenny,0,%t IDENTIFIED BY ,SecretPass123!, PASSWORD EXPIRE;
• D. CREATE USER ,jenny *@,localhost, IDENTIFIED WITH HASH PASSWORD(,SecretPass123!,)
• E. CREATE USER ,jenny,@'%, WITH HASHED(password,,SecretPass123!,), PASSWORD EXPIRE

Answer: A

NEW QUESTION # 57
Which component of MySQL Enterprise Monitor provides trend analysis and capacity planning for MySQL databases?
Response:

• A. MySQL Advisors
• B. MySQL Query Analyzer
• C. MySQL Dashboard
• D. Query Analyzer

Answer: B

NEW QUESTION # 58
What is true about MySQL Enterprise Transparent Data Encryption (TDE)?

• A. Encryption key is stored in a centralized key memory location
• B. Enables data-at-rest encryption by encrypting the physical files of the database.
• C. Tablespace keys are managed manually behind the scenes.
• D. Data is encrypted automatically, in real time, after it is written to storage.

Answer: B

NEW QUESTION # 59
Which two statements are true about MySQL Enterprise Firewall?

• A. Server-side plug-ins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL-WHITELIST implement INFORMATION_SCHEMA tables that provide views into the firewall data cache.
• B. On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
• C. System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.
• D. MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.
• E. The firewall functionality is dependent upon SHA-256 and ANSI-specific functions built in to the mysql.firewall table. These functions cannot be deleted, even by the root user.
• F. MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.

Answer: A,C

NEW QUESTION # 60
Which statement is used to create a new MySQL database?
Response:

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

Answer: C

NEW QUESTION # 61
Which statement would you use to remove the population column from the city table?

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

Answer: B

NEW QUESTION # 62
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