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Your network consists of a single Active Directory forest. The forest contains one Active Directory domain. The domain contains eight domain controllers. The domain controllers run Windows Server 2003 Service Pack 2.  
You upgrade one of the domain controllers to Windows Server 2008 R2.  
You need to recommend an Active Directory recovery strategy that supports the recovery of deletedobjects. The solution must allow deleted objects to be recovered for up to one year after the date of  deletion.
What should you recommend？（）

Certkiller。COM网络包含一个父域和子域的Active Directory林中。子域有两个域控制器运行Windows Server 2008。从子域中的所有用户帐户迁移到父域。子域预计将退役。您需要删除从Active Directory林中的子域。什么是两种可能的方式实现这一目标（） 在子域中域控制器上使用服务器管理器中卸载Active Directory域服务中的作用。。 个人应答文件中的每个子域的域控制器上运行DCPROMO工具。。 删除每个子域的域控制器的计算机帐户。删除父域和子域之间的信任关系。。 运行计算机管理控制台，停止在子域中域控制器上都的域控制器服务。。 短行程单相交流制动电磁铁线圈温度不许超过（） 110℃。 120℃。 115℃。 125℃。 危险化学品有哪几类？ You are creating a Windows Communication Foundation (WCF) service that accepts messages from clients when they are started. The message is defined as follows:[MessageContract] public class Agent { public string CodeName { get; set; } public string SecretHandshake { get; set; }}You have the following requirements: The CodeName property must be sent in clear text. The service must be able to verify that the property value was not changed after being sent by the client. The SecretHandshake property must not be sent in clear text and must be readable by the service.What should you do?（） Add a MessageBodyMember attribute to the CodeName property and set the ProtectionLevel to Sign. Add a MessageBodyMember attribute to the SecretHandshake property and set the ProtectionLevel to EncryptAndSign.。 Add a DataProtectionPermission attribute to the each property and set the ProtectData property to true.。 Add an xmlText attribute to the CodeName property and set the DataType property to Signed. Add a PasswordPropertyText attribute to the SecretHandshake property and set its value to true.。 Add an ImmutableObject attribute to the CodeName property and set its value property to true. Add a Browsable attribute to the SecretHandshake property and set its value to false.。 导水机构安装主要技术要求有哪些？

Your network consists of a single Active Directory forest. The forest contains one Active Directory domain. The domain contains eight domain controllers. The domain controllers run Windows Server 2003 Service Pack 2.  
You upgrade one of the domain controllers to Windows Server 2008 R2.  
You need to recommend an Active Directory recovery strategy that supports the recovery of deletedobjects. The solution must allow deleted objects to be recovered for up to one year after the date of  deletion.
What should you recommend？（）