Oracle 1Z1-921 : MySQL 2021 Implementation Essentials

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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which three statements describe MySQL Enterprise Backup?

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

2. Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?

A) Only root is allowed to access from non-localhost.
B) The OCI instance is still in the "creation" process.
C) You forgot to enable port 3306.
D) The opc user can be used to access MySQL only with the created SSH-Key.
E) You forgot to create the correct SSL/TLC certificate during the setup process.

3. The slave connects to the master and asks for updated records. What command was issued for this to happen?

A) RUN SLAVE
B) SLAVE RUN
C) SLAVE START
D) START RUN SLAVE
E) START SLAVE

4. Which three options are valid reasons for using a primary key in a table?

A) exporting data faster with mysqldump
B) increasing performance when using select statements
C) automatic storage of data in a sorted order
D) preventing duplicate keys
E) maintaining a history of row insertions or updates
F) to make it easier to change the PRIMARY KEY value

5. 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) You specify the new element,s position in the JSON_ARRAY_INSERT statement.
C) Any new lines can only be inserted at the end of the document.
D) The path specified must be an array position past the end of an array using the JSON_POSITION statement.

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