Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)
Correct Answer: B,C,F
https://docs.oracle.com/en/database/oracle/oracle-database/19/upgrd/upgrading-oracle- database-upgrade-assistant-dbua.html#GUID-8BDDF859-1638-45AC-824D-78FC8154847C
A). False. Only "...This option recompiles all INVALID PL/SQL modules after the upgrade is complete
B). True. "...The following is a list of examples of DBUA checks, and of actions that DBUA performs on the database: Empty database recycle bin..."
C). True. "... DBUA runs the Pre-Upgrade Information Tool as part of the prerequisite checks it performs before starting the upgrade..."
D). False. Only true for option Partial Backup "...Select among the following RMAN backup options:... Create a New Partial Offline RMAN Backup with User Tablespace. If you select this option, then user tablespaces are placed into read-only mode during the upgrade...."
E). False. These elements are not mentioned in the description of the DBUA process.
F). True. DBUA only continues if the check phase verifies that it can increase the size of tablespaces "... uses the following logic to modify or create new required tablespaces..."