Which three statements are true about unplugging a pluggable database (PDB)? (Choose three.)
Correct Answer: A,B,E
Explanation/Reference:
Explanation:
A: To unplug a PDB, you first close it.
E: You can disassociate or unplug a PDB from a CDB and reassociate or plug the PDB into the same CDB or into another CDB.
Incorrect Answers:
C: The PDB must be in a closed stated, not in a mounted state when unplugging it.
D: The unplugging operation makes changes in the PDB data files to record that the PDB was properly and successfully unplugged. Because the PDB is still part of the CDB, you can back it up in Oracle Recovery Manager (Oracle RMAN).
References: http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/12c/r1/pdb/pdb_unplug_plug/ pdb_unplug_plug.html