单项选择题
A. /usr/bin/errpt -d H 30
B. /usr/sbin/errclear - J H 30
C. /usr/bin/errclear -d H 30
D. /usr/sbin/errclear -j H 30
单项选择题 Whenasystemhasbothonlinetransactionprocessingaswellaslargebatchprocessing，whichofthefollowingcommonprocedureswillbesthelptoimprovesystemperformance？（）
单项选择题 DataistransferredbetweentwoserversusingNFS，whereoneserverisconfiguredwithtokenring，andtheothersystemisconfiguredwithethernet.Itisdiscoveredthattheperformanceisgreatlyreducedduringthistransfer.Whichofthefollowingstepsshouldbetakentoimproveperformance？（）
单项选择题 ThesystemadministratorhasdeterminedthatanewJFSlogneedstobecreatedonadifferentdisk，inordertodecreaseanI/Obottleneck.Whichofthefollowingstepsarethemostcorrect？（）