单项选择题
A.The MTTR Advisor is disabled.
B.The database is in NOARCHIVELOG mode.
C.The tablespace is already in backup mode.
D.The Flash Recovery Area is not configured.
单项选择题 WhichstatementistrueaboutawholeconsistentdatabasebackuponadatabaserunninginARCHIVELOGmode（）
单项选择题 Your test database is configured to run in NOARCHIVELOG mode. One of the data files in the USERStablespace is lost due to a media failure. You notice that all the online redo logs have been overwritten since the last backup. What would you do to recover the data file（）
单项选择题 The database is running in ARCHIVELOG mode. Examine the initialization parameters and theirvalues set to enable archiving on your database server： LOG_ARCHIVE_FORMAT = arch_%t_%s_%r.arc LOG_ARCHIVE_DEST_1 = ’LOCATION = /disk1/archive’ DB_RECOVERY_FILE_DEST = ’/u01/oradata’ DB_RECOVERY_FILE_DEST_SIZE = 20G Which statement is true regarding the archived redo log files（）