单项选择题 Your company has a single Active Directory directory service domain. All servers in your environment run Windows Server 2003. Client computers run Windows XP or Windows Vista. You plan to create a security update scan procedure for client computers. You need to choose a security tool that supports all the client computers.  Which tool should you choose？ （）

单项选择题 You are the network administrator for your company. The network consists of a single Active Directory domain. All computers on the network are members of the domain. The domain contains a Windows Server 2003 computer named Server1. You are planning a public key infrastructure （PKI） for the company. You want to deploy a certification authority （CA） on Server1. You create a new global security group named Cert Administrators. You need to delegate the tasks to issue， approve， and revoke certificates to members of the Cert Administrators group.  What should you do？（）

单项选择题 You are a network administrator for your company. You install Windows Server 2003， Enterprise Edition on two servers named Server1 and Server2. You configure Server1 and Server2 as a two-node server cluster. Server1 and Server2 are connected to a shared fiber-attached array. You configure the server cluster for file sharing. You configure Server1 as the preferred owner of the file sharing resources. You perform the following backups by using the Backup or Restore Wizard. Tuesday Wednesday Server1 Normal backup including system state Incremental backup and Automated System Recovery （ASR） backup Server2 Normal backup including system state Incremental backup and ASR backup On Thursday morning， Server2 experiences a hard disk failure. The failed disk contains only the operating system for Server2. You evict Server2 from the server cluster. You need to recover Server2 and restore it to the cluster. You need to minimize data loss and recovery time.  What should you do？ （）