Choose three.

Oracle 1z0-083 Question Answer

Choose three. Which three are true about using Database Upgrade Assistant (DBUA) to upgrade a database?

DBUA must be launched from the target Oracle Home.

Multiple databases with the same ORACLE_HOME can be upgraded simultaneously.

A whole database backup must exist before upgrade.

The Pre-Upgrade Information Tool script is executed by DBUA.

All pluggable databases are automatically upgraded as part of a container database upgrade.

The database must be opened in read-only mode.

Oracle 1z0-083 Summary

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