Examine the following scenario：  
-Database is running in ARCHIVELOG mode. 
-Complete consistent backup is taken every Sunday. 
-On Tuesday the instance terminates abnormally because the disk on which control files are located gets corruptedThe disk having active online redo log files is also corrupted. 
The hardware is repaired and the paths for online redo log files and control files are still valid. 
Which option would you use to perform the recovery of database till the point of failure？（）  

多项选择题IdentifythechannelsettingsthatcanbeperformedusingtheCONFIGURECHANNELorALLOCATECHANNELcommandsinRMAN？（）

A. Limiting the input/output （I/O） bandwidth consumption
B. Specifying the size of backup sets and backup pieces
C. Specifying vendor-specific information for a media manager
D. Specifying the parallelism for backup and restore operations

多项选择题WhattwoaretheprerequisitesforenablingFlashbackDatabase？（）

A. The database must be in ARCHIVELOG mode
B. The database must be in MOUNT EXCLUSIVE mode
C. The database must be opened in RESTRICTED mode
D. The database instance must be started in the NOMOUNT state
E. The database instance must have the keep buffer pool defined

单项选择题Whichtypeofbackupmustbeperformedfirstwithanincrementalbackup？（）

A. Level 1
B. Level 0
C. Level 2
D. Level 3

单项选择题Whichtypeofbackupbacksuponlydatablocksmodifiedsincethemostrecentbackupatthesamelevelorlower？（）

A. Differential incremental backup
B. Different incremental backup
C. Cumulative backup
D. Cumulative incremental backup

单项选择题Whichisthecorrectcommandtobackupthedatabase，backupthearchivedredologs，andthenremovethebacked-uparchivedredologs？（）

A. backup database
B. backup database and archivelogs
C. backup database plus archivelogs
D. backup database plus archivelog delete input
E. backup database and archivelog delete input