2025 Latest 100% Exam Passing Ratio - 1Z0-921 Dumps PDF
Pass Exam With Full Sureness - 1Z0-921 Dumps with 78 Questions
The Oracle 1Z0-921 exam consists of 60 multiple-choice questions and must be completed within 90 minutes. It covers a range of topics related to MySQL database administration and development, including installation and configuration, security, performance optimization, data manipulation, and data management.
NEW QUESTION # 44
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 MySQL Enterprise Backup with the - -size=compress to compress the backup file.
- B. Use MySQL Enterprise Backup with the - - incremental policy to back up incrementally based on previous full backup.
- C. Use mysqldump with the - -changesonly option.
- D. Use MySQL Enterprise Backup with the - -compress option to compress the backup files and use - - compress-level to select the level of compression.
- E. Use mysqldump with - -incremental together with the - -compress option to back up incrementally based on previous full backup and compress the incremental backup files.
Answer: C,D
NEW QUESTION # 45
How would you restrict a user Joe from accessing all MySQL database objects?
- A. REVOKE ALL PRIVILEGES, GRANT OPTION FROM ,joe,@,%,;
- B. UPDATE mysql.user SET Password=PASSWORD(,Invalid,) WHERE User=,joe';
- C. CREATE USER , joe,@1' %' DENY ALL PRIVILEGES
- D. CREATE USER ,joe'@,0.0.0.0, SET Password=PASSWORD(,% ! %,)
- E. Insert Joe,s name into the mysql.user_restriction cable, and issue the FLUSH PRIVILEGES command.
Answer: E
NEW QUESTION # 46
Assume that MySQL Enterprise Monitor is configured to monitor MySQL 8.0.10 or a later instance. Which three features are available?
- A. starting and stopping the MySQL instance
- B. monitoring the availability of the MySQL Instance
- C. deploying MySQL agent on supported target operating system
- D. tracing import and export with mysqldump
- E. analyzing executed MySQL queries
- F. creating e-mail alerts and SNMP traps for MySQL warnings
Answer: C,D,F
NEW QUESTION # 47
When using an Oracle Cloud Infrastructure Compute Instance with MySQL Enterprise Edition installed, you have two choices for backup destinations. What are these two choices?
- A. Flash-archive recovery area
- B. Both Cloud storage and local storage
- C. Cloud tape library
- D. Cloud storage only
Answer: B,D
NEW QUESTION # 48
Which is a correct example of creating an Enterprise Encryption function?
- A. CREATE FUNCTION asymmetric_decrypt RETURNS STRING SONAME ,openss1_udf.so,;
- B. VALIDATE FUNCTION create_asymmetric_priv_key WITH ,openssl_udf.so';
- C. SET @function = CREATE_ASYMMETRIC_PRIV_KEY(@algo, @key_len);
- D. INSERT INTO t1 (key_co1) FUNCTION(CREATE_ASYMMETRIC_PRIV_KEY(,RSA,, 1024));
Answer: A
NEW QUESTION # 49
MySQL Enterprise Masking and De-identification can hide or obfuscate sensitive data, by controlling how the data appears. Which three are MySQL Enterprise Masking and De-identification functions?
- A. strict or relaxed masking
- B. random data substitution
- C. whitelisting and substitution
- D. dictionary substitution
- E. misspelling
Answer: A,B,D
NEW QUESTION # 50
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?
- A.
- B.
- C.
- D.
- E.
Answer: C
NEW QUESTION # 51
Which two statements are true about the creation or use of a Virtual Cloud Network (VCN)?
- A. You must have an IPSec VPN to connect to an Oracle Linux instance.
- B. You can connect directly to the VCN without a define subnet.
- C. You can connect directly to an instance over the internet, without a public IP address.
- D. You must have an Internet gateway to connect to a public address on an Oracle Linux instance.
- E. Your instance does not have a public IP address, so you cannot connect with a public subnet.
Answer: B,C
NEW QUESTION # 52
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. Only the t1 table is created.
- C. Both the tables, t1 and t2, are created.
- D. Both the tables, t1 and t2, are not created because there is an explicit ROLLBACK.
Answer: C
NEW QUESTION # 53
Which statement is used to create a new MySQL database?
Response:
- A. NEW DATABASE
- B. CREATE SCHEMA
- C. CREATE DATABASE
- D. CREATE TABLE
Answer: C
NEW QUESTION # 54
Which three statements are true about MySQL Enterprise Backup?
- A. It enables you to take non-locking backups.
- B. It cannot back up encrypted tablespaces.
- C. It provides the ability to create incremental backups.
- D. It performs logical backups.
- E. It performs hot or warm backups.
Answer: A,C,D
NEW QUESTION # 55
Which four authentication protocols are allowed when using MySQL Enterprise Authentication?
- A. authentication via Pluggable Authentication Modules (PAMs)
- B. Simple Authentication and Security Layer
- C. SECURID authentication and authorization identity
- D. Native Windows services
- E. connections through the local host via the UNIX socket file
- F. authentication using SHA-256 password hashing
Answer: A,D,E,F
NEW QUESTION # 56
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. Altering the storage engine for all tables to memory to increase performance.
- C. Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.
- D. Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.
- E. Implementing a three-node, single-primary InnoDB Cluster.
Answer: B,E
NEW QUESTION # 57
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. Use MySQL Enterprise High Availability to access one of the available data tables
- 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. Alter the table with the statement: ALTER TABLE IMPORT DATA WITH data_masking plugin;
Answer: D
NEW QUESTION # 58
Which two statements are true about MySQL Enterprise Firewall?
- A. MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.
- B. Server-side plug-ins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL-WHITELIST implement INFORMATION_SCHEMA tables that provide views into the firewall data cache.
- C. On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
- D. 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.
- E. System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.
- F. MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.
Answer: B,E
NEW QUESTION # 59
Which activity will take place if a table is created with both the compression and encryption options?
- A. The compression is performed, the ''data_at_rest_flag" is turned on and the tablespace data is encrypted.
- B. The compression is performed before tablespace data is encrypted.
- C. The tablespace data is encrypted first and then compression is performed.
- D. The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.
Answer: B
NEW QUESTION # 60
Which three are requirements for MySQL Group Replication (GR)?
- A. The binary log format must be set to mixed.
- B. GR only works with MySQL versions 8.0.12 or higher.
- C. Data to be replicated must be stored in the InnoDB transactional storage engine.
- D. The use of global transaction identifiers is required.
- E. Primary keys are required on every replicated table.
- F. The minimum number of required nodes for achieving a consensus is two.
Answer: A,C,E
NEW QUESTION # 61
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Oracle 1Z0-921 (MySQL 2021 Implementation Essentials) Certification Exam is designed for individuals who want to demonstrate their expertise in implementing and managing a MySQL database. MySQL 2021 Implementation Essentials certification exam is intended for professionals who work with MySQL databases in various capacities, such as database administrators, developers, and architects. 1Z0-921 exam covers various topics, including MySQL architecture, installation and configuration, security, performance optimization, and backup and recovery.
Oracle 1Z0-921 (MySQL 2021 Implementation Essentials) Certification Exam is designed for individuals who plan to work with MySQL databases. 1Z0-921 exam is targeted towards database administrators, developers, and consultants who are responsible for designing, implementing and managing MySQL databases. MySQL 2021 Implementation Essentials certification exam ensures that individuals have the necessary knowledge and skills to work with MySQL databases efficiently and effectively.
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