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A.All control files are openedB.All redo files are open……

You work as a database administrator for Certkiller .com. Your database is in the MOUNT state and you execute the following command to open it ALTER DATABASE OPEN; What two actions are performed as a result of this command?()

A.All control files are opened
B.All redo files are opened
C.The password file is opened
D.The parameter file is opened
E.All online data files are opened

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