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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. After installing MySQL 8.0, you initialize the data directory with the --initialize command. Which two are places where you can find the root password?

A) As root, execute the show password command by using the SHA-256 password encryption plug-in.
B) The root password displayed on the screen via a [warning] message.
C) The root password is not given and is blank. You must manually set the root password.
D) The root_pw variable stored in the mysq1.install table.
E) The root password inserted in the error log set by the --log-error=[file_name] variable

2. Which three statements describe MySQL Enterprise Backup?

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

3. Which is true about inserting an additional line in a single document stored in MySQL document store?

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

4. Which four authentication protocols are allowed when using MySQL Enterprise Authentication?

A) connections through the local host via the UNIX socket file
B) Simple Authentication and Security Layer
C) authentication using SHA-256 password hashing
D) SECURID authentication and authorization identity
E) authentication via Pluggable Authentication Modules (PAMs)
F) Native Windows services

5. Which three are requirements for MySQL Group Replication (GR)?

A) Primary keys are required on every replicated table.
B) The minimum number of required nodes for achieving a consensus is two.
C) GR only works with MySQL versions 8.0.12 or higher.
D) Data to be replicated must be stored in the InnoDB transactional storage engine.
E) The use of global transaction identifiers is required.
F) The binary log format must be set to mixed.

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