Exam Name: MySQL 2021 Implementation Essentials
Certification Provider: Oracle
Corresponding Certification: Oracle MySQL
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Oracle 1Z1-921 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Monitoring and Troubleshooting | - Basic troubleshooting techniques - Performance monitoring |
| Topic 2: Database Design and Development | - Data types and normalization - Schema design principles |
| Topic 3: Data Management and SQL Operations | - SQL queries and DML operations - Indexing and optimization basics |
| Topic 4: Security and User Management | - User accounts and privileges - Authentication plugins (PAM, AD integration) |
| Topic 5: Backup, Recovery, and Replication | - Replication concepts and configuration - Backup strategies |
| Topic 6: MySQL Architecture and Installation | - MySQL server architecture - Installation and configuration |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
Which three components can MySQL InnoDB Cluster use to Achieve database high availability?
- A. MySQL X Plugin to enable MySQL to use the X Protocol to speed up and monitor data replication.
- B. MySQL Servers with Group Replication to replicate data to all members of the cluster.
- C. MySQL Router to ensure client requests are load balanced and routed to the correct servers.
- D. MySQL Online Hot Backup to keep data consistent and always ready to be used.
- E. MySQL Shell to create and administer InnoDB Clusters using the built-in AdminAPI.
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.
Which four authentication protocols are allowed when using MySQL Enterprise Authentication?
- A. SECURID authentication and authorization identity
- B. Simple Authentication and Security Layer
- C. connections through the local host via the UNIX socket file
- D. authentication using SHA-256 password hashing
- E. Native Windows services
- F. authentication via Pluggable Authentication Modules (PAMs)
You execute this statement:
SELECT NULL=NULL;
What is the result?
- A. NULL
- B. TRUE
- C. 1
- D. FALSE
- E. 0
What SQL keyword must be specified when creating a foreign key constraint?
- A. a REFERENCES in the child table to the parent table
- B. a TRIGGER on the child table for cascading delete statements
- C. the SET_FOREGIN variable in the my .cnf file
- D. an index on the foreign key
- E. unique PRIMARY key values for both child and parent tables
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