单项选择题 You are a network administrator for your company. The network consists of a single Active Directory domain and contains 10 Windows Server 2003 computers.   You install a new service on a server named Server1. The new service requires that you restart Server1. When you attempt to restart Server1， the logon screen does not appear. You turn off and then turn on the power for Server1. The logon screen does not appear. You attempt to recover the failed server by using the Last Known Good Configuration startup option. It is unsuccessful. You attempt to recover Server1 by using the Safe Mode startup options. All Safe Mode options are unsuccessful.   You restore Server1. Server1 restarts successfully. You discover that Server1 failed because the new service is not compatible with a security patch.   You want to configure all servers so that you can recover from this type of failure by using the minimum amount of time and by minimizing data loss. You need to ensure that in the future， other services that fail do not result in the same type of failure.   What should you do？ （）

多项选择题 You are a network administrator for your company. The design team provides you with the following list of requirements for server disaster recovery：   No more than two sets of tapes can be used to restore to the previous day.  A full backup of each server must be stored off-site.   A full backup of each server that is no more than one week old must be available on-site.  Backups must never run during business hours.   Tapes may be recalled from off-site storage only if the on-site tapes are corrupted or damaged. A full backup of all servers requires approximately 24 hours. Backing up all files that change during one week requires approximately 4 hours. Business hours for the company are Monday through Friday， from 6：00 A.M. to 10：00 P.M.  You need to provide a backup rotation plan that meets the design team’s requirements.   Which two actions should you include in your plan？（）

单项选择题 You are the network administrator for your company. The network consists of a single Active Directory domain. The company has a main office in San Francisco and branch offices in Paris and Bogota. Each branch office contains a Windows Server 2003 domain controller. All client computers run Windows XP Professional.   Users in the Bogota office report intermittent problems authenticating to the domain. You suspect that a specific client computer is causing the problem.   You need to capture the authentication event details on the domain controller in the Bogota office so that you can find out the IP address of the client computer that is the source of the problem.   What should you do？  （）