What is the benefit of running the catctl.pl script during an upgrade of a pre-12c database to an Oracle 12c database?

Question

Options

• AIt provides a summary of the upgrade results.
• BIt recompiles all invalid PL/SQL and Java code.
• CIt generates a log file containing the fixes that can be made to thesource database.
• DIt provides parallel upgrade options to finish the upgrade process with a reduced down time.
• EIt generates fix-up scripts to be run on the source database before upgrade.

• A
  9% (4)
• B
  2% (1)
• C
  2% (1)
• D
  86% (38)

Explanation

https://docs.oracle.com/database/121/UPGRD/upgrade.htm#UPGRD52860

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