ViewtheExhibitandexaminetheoutput.YouexecutethefollowingRMANcommandtoperformthebackupoperation:RMAN>RUN{ALLOCATECHANNELc1DEVICETYPEdiskMAXOPENFILES8;BACKUPDATAbaseFILESPERSET4;}Whatisthemultiplexinglevelintheprecedingbackupprocess?()
A.4
B.8
C.7
D.0
正确答案:参考A



