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To prepare for the Oracle 1Z0-921 Certification Exam, candidates can take advantage of various study resources such as online courses, books, and practice exams. Oracle offers official MySQL training courses, which cover the topics covered in the exam and provide hands-on practice with MySQL databases.
NEW QUESTION # 13
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. Cloud storage only
- B. Cloud tape library
- C. Flash-archive recovery area
- D. Both Cloud storage and local storage
Answer: A,D
NEW QUESTION # 14
Which two statements are true about MySQL Enterprise Firewall?
- A. MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.
- 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. 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.
- D. MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.
- E. System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.
- F. On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
Answer: B,E
NEW QUESTION # 15
Which three are recommended configurations for installing and running MySQL InnoDB Cluster?
- A. The number of machines per group must be 3, 5, 7 or 9.
- B. Networks must be in separate regions.
- C. smaller VM,s work best - with a maximum of eight vCPU,s and 16GB of RAM
- D. Use Network-attached storage (NAS) for the data files.
- E. isolated machine resources
- F. use SSD,s for data and replication logs
- G. Groups must be in even numbers; 2, 4, 6, 8.
Answer: A,D,G
NEW QUESTION # 16
The user 'fwuser'@'localhost% was registered with the MySQL Enterprise Firewall and was granted privileges for the SAKILA database. You executed the commands:
You want to clear the account whitelist for the * fwuser" @* localhost* user. Which statement should you run to accomplish this?
- A.
- B.
- C.
Answer: A
NEW QUESTION # 17
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. Set the expire_logs_days system variable to expire binary log files automatically after a given number of days.
- B. On the Master server, disable binlog by removing the --log-bin option.
- C. Delete all binlog files manually on the file system to release storage spaces.
- D. To safely purge binary log files, perform these steps:
- E. Execute the purge binary logs statement without argument.
Answer: A,D
NEW QUESTION # 18
What are the two main components required to set up persistent storage for MySQL on Kubernetes?
Response:
- A. Pod and ReplicaSet
- B. PVC (Persistent Volume Claim) and PV (Persistent Volume)
- C. Secret and Deployment
- D. PVC (Persistent Volume Claim) and ConfigMap
Answer: B
NEW QUESTION # 19
You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?
- A. The table will be optimized and replicated.
- B. The table will be checked for errors and repaired.
- C. The table storage space will be reduced.
- D. The table statistics will be stored.
Answer: A
NEW QUESTION # 20
You need to change the password level for a test system.
Which two allow to change this level before you create new test user/passwords?
- A. Add validate_password=,new level, in the [security] section of the MySQL configuration file.
- B. SET GLOBAL force_password_complex_policy=0;
- C. Add validate_password_policy=,new level, in the [mysqld] section of the MySQL configuration file.
- D. SET GLOBAL validate_password_policy=,new level,;
Answer: C,D
NEW 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?
- A. The mysql.instance table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
- B. The mysql.inventory table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
- C. All the MySQL instances (Master and Slave) have the same server_uuid in <datadir>/auto.cnf.
- D. The SLAVE and MASTER instances are started with the same configured value for the option - - monitor_server_uuid.
- E. The MASTER and SLAVE are grouped as one instance for monitoring.
Answer: A,E
NEW QUESTION # 22
What three are ways to export and import data in MySQL Workbench?
- A. Result Data Export and Import
- B. Data Modeling Import Export Wizard
- C. Backup Data Export and Import Wizard
- D. Table Data Export and Import Wizard
- E. Binary Data Export and Import Wizard
- F. SQL Data Export and Import Wizard
Answer: A,D,F
NEW QUESTION # 23
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 does not have proper user rights.
- 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 reached the database instance limit of 32.
- D. The customer account might have reached resource quota/limits.
Answer: C
NEW QUESTION # 24
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 mysqldump with the - -changesonly option.
- C. Use MySQL Enterprise Backup with the - -compress option to compress the backup files and use - - compress-level to select the level of compression.
- 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: B,C
NEW QUESTION # 25
Which statement is used to create a new MySQL database?
Response:
- A. CREATE DATABASE
- B. CREATE SCHEMA
- C. CREATE TABLE
- D. NEW DATABASE
Answer: A
NEW QUESTION # 26
Which is a correct example of creating an Enterprise Encryption function?
- A. SET @function = CREATE_ASYMMETRIC_PRIV_KEY(@algo, @key_len);
- B. CREATE FUNCTION asymmetric_decrypt RETURNS STRING SONAME ,openss1_udf.so,;
- C. INSERT INTO t1 (key_co1) FUNCTION(CREATE_ASYMMETRIC_PRIV_KEY(,RSA,, 1024));
- D. VALIDATE FUNCTION create_asymmetric_priv_key WITH ,openssl_udf.so';
Answer: B
NEW QUESTION # 27
Which statement will display the status of the partitioning plug-in?
- A. SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS FROM INFOMRATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME= 'partition';
- B. SHOW PLUGINS WHERE Name= 'partition';
- C. SHOW STATUS PLUGINS WHERE Name= 'PARTITIONING';
- D. USE SYS SCHEMA; SHOW PLUGINS STATUS;
Answer: A
NEW QUESTION # 28
Which query will find rows in a table that have no counterpart in another table?
- A. SELECT t1.name, t2.name2FROM employee t1 INNER JOIN info t2 WHERE t1.name=t2.name;
- B. SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;
- C. SELECT *FROM table1 INNER JOIN table2 ON table1.id=table2.id WHERE table1.id=! table2.id;
- D. SELECT t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;
Answer: B
NEW QUESTION # 29
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