单项选择题 Afterperformingacopybackupofafileserver，thearchivebitonthebackedupfileswillbewhichof thefollowing？（）

单项选择题 AtaminimumhowmanyNICsmustamachinehavetohostvirtualmachines？（）

单项选择题 In a Windows Server 2003 environment using PKI， a user encrypts several documents on a shared file server. That user account is then accidentally deleted.  Which of the following must be configured inorder to decrypt those files？（）