题目内容

Anadministratorattemptedtorunasar-ureportandreceivedthefollowingerror:sar:0551-201Cannotopen/var/adm/sa/sa12.Whichofthefollowingshouldbescheduledinadm’scrontabtoenablesarreporting()

A. sar
B. sa1
C. vmo
D. iostat

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