THE DEFAULT SHUTDOWN MODE IS SHUTDOWN NORMAL, WHICH WILL HANG UNTIL ALL SESSIONS HAVE VOLUNTARILY DISCONNECTED

6. þ B. The default shutdown mode is SHUTDOWN NORMAL, which will hang until all sessions have voluntarily disconnected.ý A, C, and D. A and C are wrong because these would cause an error, not a hang. D is wrong because it describes SHUTDOWN TRANSACTIONAL, not SHUTDOWN NORMAL.