[2025年最新] 高合格率な1Z1-921テストアンサーかつOracle 1Z1-921テストPDF [Q39-Q62]

[2025年最新] 高合格率な1Z1-921テストアンサーかつOracle 1Z1-921テストPDF

完璧1Z1-921問題集試験問題と解答でパス保証されます

Oracle 1Z0-921試験は、MySQLデータベースの実装と管理に関する知識とスキルをテストするために設計されています。この試験は、MySQLのコンセプトに強い理解を持ち、自分のスキルと知識を確認したい個人を対象としています。試験は、データベースアーキテクチャ、データ型、セキュリティ、パフォーマンスチューニング、バックアップおよびリカバリなど、幅広いトピックをカバーしています。

質問 # 39
You just installed MySQL by Using a Package Manager on Linux.
Where are the default InnoDB redo log files stored?

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

正解：A

質問 # 40
You establish MySQL Enterprise Server on Oracle Cloud Infrastructure connection via Secure Shell (SSH).
When accessing a new MySQL Enterprise Edition Oracle Cloud Infrastructure (OCI) instance, you want to use MySQL Enterprise Workbench for SQL and remote management.
What are two ways to successfully configure Workbench based on the MySQL access credentials?

A. Open the MySQL OCI instance access port 3306. For the MySQL connection, you use this port, and, in addition, you configure the remote management based on SSH based on the provided key.
B. Configure the MySQL Router first and based on those settings, you access your MySQL CS instance.
C. Convert the private key to ppk format first. Based on TCP/IP over SSH and based on the created private key, opc-user, and MySQL access credentials, you can access the MySQL CS instance.
D. Configure TCP/IP over SSH and based on the created private key, opc-User, and MySQL access credentials, you can access the MySQL OCI instance.

正解：A

質問 # 41
Which three installation options are available for installing the MySQL Enterprise Monitor/Agent on Linux?

A. A script (with an option file) for installing MySQL Enterprise Monitor, Agent, and a MySQL Repository database
B. A MySQL Enterprise Monitor to remotely deploy the MySQL Monitor Agent
C. A GUI for installing MySQL Enterprise Monitor, Agent, and a MySQL Repository database
D. A CLI-based wizard MySQL Enterprise Monitor, Agent, and a MySQL Repository database
E. A browser-based wizard to remotely deploy the MySQL Monitor Agent

正解：A、C、D

質問 # 42
Which two statements about the download of MySQL Enterprise Backup are correct?

A. MySQL Enterprise Backup comes with MySQL Utilities Package, which is available for download publicly on http://www.mysql.com.
B. MySQL Enterprise Backup comes with MySQL Connector and is freely available for download.
C. MySQL Enterprise Backup can be downloaded from My Oracle Support (MOS).
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.

正解：D、E

質問 # 43
Which MySQL command is used to grant specific privileges to a user on a database?
Response:

A. GIVE ACCESS
B. GRANT
C. GRANT PERMISSIONS
D. SET PRIVILEGES

正解：B

質問 # 44
Which three statements are true about MySQL Enterprise Backup?

A. It performs hot or warm backups.
B. It cannot back up encrypted tablespaces.
C. It provides the ability to create incremental backups.
D. It enables you to take non-locking backups.
E. It performs logical backups.

正解：C、D、E

質問 # 45
How does MySQL HeatWave improve query performance?
Response:

A. By automatically creating indexes on frequently used columns.
B. By caching the entire database in memory.
C. By replicating data across multiple servers.
D. By offloading analytics queries to an in-memory, highly parallel processing engine.

正解：D

質問 # 46
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 *FROM table1 INNER JOIN table2 ON table1.id=table2.id WHERE table1.id=! table2.id;
C. SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;
D. SELECT t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;

正解：C

質問 # 47
Which two are advantages of using Document Store in MySQL?

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

正解：B、C

質問 # 48
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?

A. Go to the configuration section (Users) and create a new user according to the existing users of your new MySQL instances.
B. 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.
C. Go to the configuration section (MEM) and configure the default login credentials.
D. Go to the configuration section (Advisors) and create a new advisor rule for new MySQL instances based on the MySQL Advisor Wizard.

正解：B

質問 # 49
Which Oracle product is certified to work with MySQL Enterprise Edition?

A. Oracle Enterprise Backup
B. Oracle Enterprise Manager
C. Oracle Data Pump
D. Oracle Application Express

正解：B

質問 # 50
Which two deployment architectures could you use for scaling-out database reads?

A. Altering the storage engine for all tables to memory to increase performance.
B. Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.
C. Implementing a three-node, single-primary InnoDB Cluster.
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. Edit the configuration file and increase the value for parallel_read_workers and reboot the server

正解：A、C

質問 # 51
What SQL keyword must be specified when creating a foreign key constraint?

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

正解：D

質問 # 52
Which two statements are correct about MySQL Enterprise Edition?

A. MySQL Enterprise Edition can be installed on an Oracle Cloud Infrastructure Compute Instance.
B. Oracle MySQL Enterprise tools & plugins are available as optional services (installation Feature Pack I/II).
C. Oracle offers 24x7, global support for MySQL Enterprise Edition products installed on Oracle Cloud Infrastructure Compute Instances.
D. MySQL Enterprise Product Suite can be installed on an Oracle Cloud Infrastructure Virtual Cloud Network.
E. MySQL configuration can be changed in /etc/lib/myi.cnf.

正解：B、E

質問 # 53
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 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.
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 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.
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 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.

正解：A

質問 # 54
Which three statements describe MySQL Enterprise Backup?

A. MySQL Enterprise Backup offers backup based on Oracle RMAN with optimized row locking.
B. MySQL Enterprise Backup can be used to import/export data from on-premises MySQL installations.
C. MySQL Enterprise Backup is an optimized backup based on mysqldump with optimized row locking.
D. MySQL Enterprise Backup can be used to send backups to Oracle Cloud Infrastructure Storage Service.
E. MySQL Enterprise Backup provides the point-in-time recovery functionality.

正解：A、C、E

質問 # 55
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. Direct support call from an Oracle representative
B. SMS-notification tab on the dashboard
C. Email
D. Application-to-application messaging
E. Browser pop-ups

正解：B、C

質問 # 56
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

正解：A

質問 # 57
What are the two main components required to set up persistent storage for MySQL on Kubernetes?
Response:

A. Secret and Deployment
B. PVC (Persistent Volume Claim) and ConfigMap
C. PVC (Persistent Volume Claim) and PV (Persistent Volume)
D. Pod and ReplicaSet

正解：C

質問 # 58
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?

正解：C

質問 # 59
The MySQL Replication Environment (Master and Slave) is prepared.
What two are options for connecting a Java application to the MySQL Master and Slave?

正解：A

質問 # 60
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. Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
C. Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
D. Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';

正解：A、C

質問 # 61
Which is true about inserting an additional line in a single document stored in MySQL document store?

A. Any new lines can only be inserted at the end of the document.
B. You specify the new element,s position in the JSON_ARRAY_INSERT statement.
C. The path specified must be an array position past the end of an array using the JSON_POSITION statement.
D. You cannot insert a single line, you have to replace the entire document with a new document.

正解：B

質問 # 62
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1Z1-921試験問題高合格率な1Z1-921問題集PDF：https://www.jpntest.com/shiken/1Z1-921-mondaishu

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