单项选择题 Your network consists of a single Active Directory domain that contains two domain controllers. Both domain controllers run Windows Server 2003 Service Pack 2 (SP2). Auditing of successful account logon events is enabled on all computers in the domain. You need to identify the last time a specific user logged on to the domain. What should you do?（）

单项选择题 Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). You enable auditing for failed logon attempts on all domain controllers. You need to ensure that a record of failed logon attempts is retained for 90 days on all domain controllers. What should you do?（）

单项选择题 Your network consists of a single Active Directory domain. All network servers run Windows Server 2003 Service Pack 2 (SP2). The domain includes two global groups named ResearchManagers and ResearchUsers. You create a share named ResearchData. On the ResearchData share, you assign the Change permission to ResearchUsers and ResearchManagers. The ResearchData folder contains a file named ResearchConfidential.rtf. The permissions for ResearchConfidential.rtf are configured as shown in the exhibit. (Click the Exhibit button.) Members of ResearchUsers report that when they try to open ResearchConfidential.rtf, they receive an access denied message. Users report that they can add and modify other files in ResearchData. You need to ensure that ResearchUsers members can open ResearchConfidential.rtf. The solution must prevent ResearchUsers members from modifying the file. What should you do?（）