Oracle Database 12c: Installation and Administration — Question 198

Which three statements are true concerning unplugging a pluggable database (PDB)? (Choose three.)

Answer options

• A. The PDB must be open in read only mode.
• B. The PDB must be dosed.
• C. The unplugged PDB becomes a non-CDB.
• D. The unplugged PDB can be plugged into the same multitenant container database (CDB)
• E. The unplugged PDB can be plugged into another CDB.
• F. The PDB data files are automatically removed from disk.

Correct answer: B, D, E

Explanation

The correct answers are B, D, and E. The PDB must be closed (B) before it can be unplugged, and once unplugged, it can be plugged into the same CDB (D) or another CDB (E). Options A, C, and F are incorrect; a PDB does not need to be in read-only mode to unplug, it does not become a non-CDB, and its data files are not automatically removed from disk upon unplugging.