单项选择题
A.Upgrade all Windows XP client computers to Windows 7.
B.Create a central store that contains the Group Policy ADMX files.
C.Install the Group Policy client-side extensions （CSEs） on all client computers.
D.Upgrade all Windows Vista client computers to Windows Vista Service Pack 2 （SP2）.
单项选择题 Your network contains a single Active Directory domain. All client computers run Windows Vista Service Pack 2 （SP2）. You need to prevent all users from running an application named App1.exe. Which Group Policy settings should you configure（）
单项选择题 Your network contains an Active Directory forest. You add an additional user principal name （UPN） suffix to the forest. You need to modify the UPN suffix of all users. You want to achieve this goal by using the minimum amount of administrative effort. What should you use（）
单项选择题 Your network contains an Active Directory forest. The functional level of the forest is Windows Server 2008 R2. Your company’s corporate security policy states that the password for each user account must be changed at least every 45 days. You have a user account named Service1. Service1 is used by a network application named Application1. Every 45 days， Application1 fails. After resetting the password for Service1， Application1 runs properly. You need to resolve the issue that causes Application1 to fail. The solution must adhere to the corporate security policy. What should you do（）