单项选择题
What command would you use to set a persistent setting in RMAN so that backups are all written to a tape device?（）
A.CONFIGURE DEFAULT DEVICE TYPE TO TAPE MEDIA B.CONFIGURE DEFAULT DEVICE TYPE TO TAPE C.CONFIGURE DEFAULT DEVICE TYPE TO SBT D.CONFIGURE DEFAULT DEVICE TYPE TO SBT_TAPE
单项选择题 Whatfeaturecomesintoplaytohelpensurethecompletionofthebackupshouldoneofthreebackupdevicesfailduringabackupthatisusingthreedifferentchannels?（）
单项选择题 Whichdynamicviewdisplaysthestatusofblock-changetracking?（）
单项选择题 Whichofthefollowingmostcloselyrepresentsanimagecopy?（）
