单项选择题
Which one of the following RMAN commands is used to register the database files with repository that were backed up using O/S commands？（）
A.CHANGE B.CATALOG C.CROSSCHECK D.SWITCH
单项选择题 Whichofthefollowingcommandsmustbeissuedtoremoveastoredscriptfromtherecoverycatalog？（）
单项选择题 WhichoneofthefollowingstatementsabouttheTNSPINGutilityiscorrect？（）
单项选择题 WhichOraclebackgroundprocessfreesSGAresourcesthatwereallocatedtoauserprocessthatfailed？（）
