Exam Name: MySQL 2021 Implementation Essentials
Certification Provider: Oracle
Corresponding Certification: Oracle MySQL
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Oracle 1Z1-921 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Oracle MySQL Enterprise Product Suite | 10% | - Products and features of MySQL Enterprise Edition - Oracle products certified to work with MySQL Enterprise Edition - Differences between MySQL Enterprise Edition, Community Edition and Standard Edition |
| Topic 2: Database Design | 15% | - Table partitioning - MySQL Document Store - Basic SQL queries - MySQL data types - Indexes, constraints and joins - Create and manage databases and tables |
| Topic 3: Backup and Recovery | 10% | - Install and configure backup - MySQL Enterprise Backup overview - Backup encryption and compression - Data import/export with MySQL Workbench |
| Topic 4: MySQL Security | 20% | - MySQL Enterprise Audit - Data Masking and De-identification - MySQL Enterprise Firewall - Password policies and authentication - Authorization and privilege management - Transparent Data Encryption (TDE) |
| Topic 5: MySQL Database Service and HeatWave | 10% | - Service overview and provisioning - High availability configuration - HeatWave setup and usage - Monitoring and management |
| Topic 6: MySQL Enterprise Monitor | 10% | - Architecture: Service Manager and Agents - Features and benefits - Query Analyzer usage - Custom Advisors configuration |
| Topic 7: High Availability and Replication | 10% | - GTID-based replication - InnoDB Cluster deployment - High availability solutions overview - Replication concepts and setup |
| Topic 8: Installation and Architecture | 15% | - Install MySQL Enterprise Server - Configure MySQL Enterprise Server settings - MySQL infrastructure architecture overview |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
Which is true about inserting an additional line in a single document stored in MySQL document store?
- A. You specify the new element,s position in the JSON_ARRAY_INSERT statement.
- B. Any new lines can only be inserted at the end of the document.
- 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.
Correct Answer: A 🗳️
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 tablespace data is encrypted first and then compression is performed.
- C. The compression is performed before tablespace data is encrypted.
- D. The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.
Correct Answer: C 🗳️
Which two are advantages of using Document Store in MySQL?
- A. MySQL provides a native data type to store JSON data as a document
- B. MySQL is a document database allowing PDF and Word documents
- C. MySQL can store XML as a schema-less database
- D. MySQL provides a NoSQL API to access the document store
- E. MySQL provides a native data type to index PDF documents
Correct Answer: C,D 🗳️
What SQL keyword must be specified when creating a foreign key constraint?
- A. an index on the foreign key
- B. a TRIGGER on the child table for cascading delete statements
- C. the SET_FOREGIN variable in the my .cnf file
- D. unique PRIMARY key values for both child and parent tables
- E. a REFERENCES in the child table to the parent table
Correct Answer: B 🗳️
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. Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';
- C. Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
- D. Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
Correct Answer: A,D 🗳️
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