单项选择题 Your network contain 10 domain controller that run Windows Server    R2.   The network contain a member server that is configured to collect all of events that occur on the  domain controllers.   Your need to ensure that administrators are notified when a specific event occurs on any of the  domain controllers. You want to achive the goal by using the minimum amount effort.   What should you do（）

单项选择题 Your network contains an Active Directory domain.   A user named User1 takes a leave of absence for one year.   You need to restrict access to the User1 user account while User1 is away.     What should you do（）

单项选择题 Your network contains an Active Directory domain. The domain contains a group named Group1.  The minimum password lenght for the domain is set to six characters.   you need to ensure that the passwords for all users in Group1 are at least 10 characters long. All  other users must be able to use passwords that are six characters long.     What should you do first（）