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You plan to upgrade your Oracle Database 9i to Oracle Database 12c.
Which two methods can you use? (Choose two.)

A.
Perform a rolling upgrade.

B.
Perform a direct upgrade by running the Database Upgrade Assistant (DBUA).

C.
Perform a direct upgrade by manually running the catctl.pl and catupgrd.sql scripts before issuing
the STARTUPUPGRADE command.

D.
Install the Oracle Database 12c software, create a new Oracle 12c database, and then use the Oracle Data
Pump to import data from the source Oracle 9i database to the target Oracle 12c database.

E.
Upgrade your current database to Oracle Database release 10.2.0.5, and then upgrade to Oracle Database
12c.

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