最新の2023年10月 Oracle 1z1-908問題集で更新された142問あります
PDF無料ダウンロードには1z1-908有効な練習テスト問題
Oracle 1z1-908 認定試験は、MySQL 8.0 データベース管理者になりたいと考えている方々を対象に設計されています。この試験は、MySQL データベースでの作業経験があり、その知識やスキルを潜在的な雇用主にアピールしたいと考えている方々に最適です。
質問 # 11
You made some table definition changes to a schema in your MySQL Server.
Which two statements reflect how MySQL Server handles the table definition changes? (Choose two.)
- A. MySQL implicitly executes FLUSH TABLES and stores a snapshot backup of the metadata.
- B. MySQL writes SDI to the binary log for distributed backups.
- C. MySQL keeps InnoDB metadata changes in .sdi files in datadir.
- D. MySQL Server stores a copy of the serialized data in the InnoDB user tablespace.
- E. The metadata is serialized in JSON format in Serialized Dictionary Information (SDI).
正解：D、E
質問 # 12
Which two tools are available to monitor the global status of InnoDB locking? (Choose two.)
- A. SHOW TABLE STATUS;
- B. INFORMATION_SCHEMA.INNODB_TABLESTATS
- C. INFORMATION_SCHEMA.INNODB_METRICS
- D. INFORMATION_SCHEMA.STATISTICS
- E. SHOW ENGINE INNODB STATUS;
- F. SHOW STATUS;
正解：B、D
質問 # 13
Examine the modified output:
Seconds_Behind_ Mastervalue is steadily growing.
What are two possible causes? (Choose two.)
- A. This value shows only I/O latency and is not indicative of the size of the transaction queue.
- B. The master is producing a large volume of events in parallel but the slave is processing them serially.
- C. The master is most probably too busy to transmit data and the slave needs to wait for more data.
- D. One or more large tables do not have primary keys.
- E. The parallel slave threads are experiencing lock contention.
正解：A、B
解説：
Explanation
質問 # 14
Examine this command, which executes successfull
mysqlbackup --defaults-file=/backups/server-my.cnf --backup-dir=/backups/full copy-back Which statement is true about the copy-back process?
- A. The copy-back process is used to overwrite a new backup over an existing backup.
- B. The copy-back process makes inconsistent backups.
- C. It restores files from the backup directory to their original MySQL server locations.
- D. It restores files from the data directory to their original MySQL server locations.
正解：A、C
質問 # 15
There are five MySQL instances configured with a working group replication.
Examine the output of the group members:
Which two statements are true about network partitioning in the cluster? (Choose two.)
- A. The cluster has built-in high availability and updates group_replication_ip_whitelistto remove the unreachable nodes.
- B. The cluster will shut down to preserve data consistency.
- C. A manual intervention to force group members to be only the working two instances is required.
- D. The group replication will buffer the transactions on the online nodes until the unreachable nodes return online.
- E. There could be both a 2 node and 3 node group replication still running, so shutting down group replication and diagnosing the issue is recommended.
正解：A、B
質問 # 16
Examine this query and output:
Which two statements are true? (Choose two.)
- A. The countrytable is accessed as the first table, and then joined to the city table.
- B. 35 rows from the city table are included in the result.
- C. It takes more than 8 milliseconds to sort the rows.
- D. The query returns exactly 125 rows.
- E. The optimizer estimates that 51 rows in the countrytable have Continent = ‘Asia’.
正解：B、E
質問 # 17
Which two statements are true about InnoDB data-at-rest encryption? (Choose two.)
- A. It supports only non-blob datatypes.
- B. It supports all indexes transparently.
- C. It does not support the transportable tablespaces feature.
- D. It enforces encryption from disk to memory and over network transmission.
- E. It decrypts data for use in memory.
正解：B、E
質問 # 18
You have a MySQL system with 500 GB of data that needs frequent backups.
You use a mix of MyISAM and InnoDB storage engines for your data. Examine your backup requirement:
* The MySQL system being backed up can never be unavailable or locked to the client applications.
* The recovery from the backup must work on any system.
* Only 1 hour of data can be lost on recovery of the backup.
Which option fulfills all backup requirements?
- A. Take your backup from a slave of the MySQL system.
- B. Take a physical backup of the MySQL system.
- C. Use the Clone Plugin to copy the data to another MySQL system.
- D. Take a logical backup of the MySQL system.
正解：D
質問 # 19
Which command enables rule-based MySQL Auditing capabilities?
- A. mysql> INSTALL COMPONENT audit_log;
- B. shell> mysql < audit_log_filter_linux_install.sql
- C. shell> mysqld --initialize --log-raw=audit.log
- D. mysql> INSTALL PLUGIN audit_log;
正解：B
質問 # 20
Which three are types of information stored in the MySQL data dictionary? (Choose three.)
- A. view definitions
- B. InnoDB buffer pool LRU management data
- C. server configuration rollback
- D. access control lists
- E. stored procedure definitions
- F. performance metrics
- G. server runtime configuration
正解：A、F、G
質問 # 21
You have a MySQL system with 500 GB of data that needs frequent backups.
You use a mix of MyISAM and InnoDB storage engines for your data.
Examine your backup requirement:
* The MySQL system being backed up can never be unavailable or locked to the client applications.
* The recovery from the backup must work on any system.
* Only 1 hour of data can be lost on recovery of the backup.
Which option fulfills all backup requirements?
- A. Take your backup from a slave of the MySQL system.
- B. Take a physical backup of the MySQL system.
- C. Use the Clone Plugin to copy the data to another MySQL system.
- D. Take a logical backup of the MySQL system.
正解：D
質問 # 22
Which statement is true about displaying and retrieving data with MySQL Enterprise Monitor Query Analyzer?
- A. The Query Analyzer graph view range selector can extend to cover the same hour over multiple days.
- B. It is possible to export statements included in a graph selection in CSV format.
- C. The Query Analyzer can plot a CPU utilization graph for remote hosts with a MySQL Enterprise Service Manager's built-in Agent installation.
- D. It is possible to filter a Query Analyzer view graph by database and by table.
正解：B
質問 # 23
You have just installed MySQL on Oracle Linux and adjusted your /etc/my.cnf parameters to suit your installation.
Examine the output:
What statement is true about the start attempt?
- A. MySQL server was not started due to a problem while executing process 2732.
- B. systemd attempted to start mysqld, found another systemd mysqld process running, and shut it down.
- C. systemd found the mysqld service disabled and failed to start it.
- D. systemd waited for 30 seconds before timing out and start up failed.
- E. MySQL server continued to start up even though another process existed.
正解：B
質問 # 24
What is the correct syntax for using transparent data encryption with an existing InnoDB table?
- A. ALTER TABLE t1 ADD ENCRYPTED_TABLESPACE = 'Y';
- B. ALTER TABLE t1 SET TDE = 'ON';
- C. ALTER TABLE t1 WITH ENCRYPTION USING MASTER KEY;
- D. ALTER TABLE t1 ENCRYPTION='Y';
正解：A
質問 # 25
You wish to store the username and password for a client connection to MySQL server in a file on a local file system.
Which is the best way to encrypt the file?
- A. Use mysql_config_editor to create an encrypted file.
- B. Use a text editor to create a new defaults file and encrypt it from Linux prompt.
- C. Use mysql_secure_installation to encrypt stored login credentials.
- D. Use the AES_ENCRYPT() MySQL function on the option file.
正解：A
質問 # 26
You have a MySQL client installed on your Linux workstation with a default installation. You have your admin login credentials to connect to a MySQL server running Microsoft Windows on remote host
192.0.2.1:3306. You wish to connect directly to the world database.
Which four options need to be specified to complete this task with a single command? (Choose four.)
- A. --host=192.0.2.1
- B. --protocol=pipe
- C. --port=3306
- D. --shared-memory-base-name=world
- E. --password
- F. --user=admin
- G. --protocol=UDP
- H. --socket=/tmp/mysql.sock
- I. --database=world
正解：A、B、D、E
質問 # 27
......
Oracle 1z1-908試験は、MySQL 8.0データベース管理者になるために必要な重要な認定資格です。SQLとデータベース管理の概念に関する広範な知識、プロダクション環境でMySQL 8.0データベースを操作する経験、および高度なデータベース管理スキルが必要です。試験に合格することで、MySQL 8.0データベースの管理、セキュリティ、最適化における熟練度が証明され、今日のテクノロジー主導の世界において組織の成功に不可欠な役割を果たします。
1z1-908テストエンジンお試しセット、1z1-908問題集PDF：https://www.jpntest.com/shiken/1z1-908-mondaishu
最新のOracle 1z1-908PDFと問題集で（2023）無料試験問題解答はここ：https://drive.google.com/open?id=1u37BfQA1GnUbcAV83x2NPVzPFlH5IgwP