A.shutdown B.shutdown abort C.shutdown immediate D.shutdown normal
A.易于磁盤的管理和維護(hù) B.跨物理磁盤的負(fù)載均衡 C.雙倍或三倍鏡像的軟raid-1 D.自動(dòng)修復(fù)failed disk
A.DBF B.online redo logfile C.Archived redo log D.database pfile