YouhaveanExchangeServer2010organizationthatcontains20mailboxdatabases.Youconfigureeachdatabasetoretainalldeleteditemsfor30days.Youneedtoensurethatallitemsthatpasstheretentionperiodarepermanentlydeleteddailybetween0200and0600.Whichcmdletshouldyouuse？（）
A.Set-MailboxDatabase
B.Set-MailboxServer
C.Set-OrganizationConfig
D.Set-RetentionPolicy
参考答案：A
