Oracle认证

【单选题】 Whatfeaturecomesintoplaytohelpensurethecompletionofthebackupshouldoneofthreebackupdevicesfailduringabackupthatisusingthreedifferentchannels?【】（计算机考试,Oracle认证试题）
【单选题】 YouareabouttocreateyourOracledatadictionaryforusewiththedatabase.WhichofthefollowinguserswouldyouconnecttothedatabaseasforthispurposeinOracle9iandlaterreleases?【】（计算机考试,Oracle认证真题）
【单选题】 Youhaveconfiguredtheflashrecoveryareatostoreonlineredologfiles，controlfiles，archivedredologsandRMANbackups.Whichofthefollowingfilescanyousuccessfullydeletefromtheflashrecoveryareaifyouwanttoreclaimthespacewithinit？【】（计算机考试,Oracle认证答案）
【单选题】 Given:What&ensp;is&ensp;the&ensp;result？【】（计算机考试,Oracle认证答案）
【多选题】 Which four are valid Oracle constraint types? 【】（计算机考试,Oracle认证查题）
【单选题】 Whichofthefollowingdatatypesareusedinsituationswhereyouwantanorderedsetofdataelements,whereeveryelementisthesamedatatype,andwhereyoupredefinethenumberofelementsthatappearintheset?【】（计算机考试,Oracle认证查题）