Your network contains an Active Directory domain named contoso.com. The domain contains a domain controller named DC1. DC1 hosts a standard primary zone for contoso.com. You discover that non-domain member computers register records in the contoso.com zone. You need to prevent the non-domain member computers from registering records in the contoso.com zone. All domain member computers must be allowed to register records in the contoso.com zone. What should you do first（）
A、Configure a trust anchor.
B、Run the Security Configuration Wizard （SCW）.
C、Change the contoso.com zone to an Active Directory-integrated zone.
D、Modify the security settings of the %SystemRoot%/System32/Dns folder.
Your network contains a single Active Directory domain. The functional level of the forest is Windows Server 2008 R2. You need to enable the Active Directory Recycle Bin. What should you use（）
A、the Dsmod tool
B、the Enable-ADOptionalFeature cmdlet
C、the Ntdsutil tool
D、the Set-ADDomainMode cmdlet
You need to deploy a read-only domain controller （RODC） that runs Windows Server 2008 R2. What is the minimal forest functional level that you should use（）
A、Windows Server 2008 R2
B、Windows Server 2008
C、Windows Server 2003
D、Windows 2000
如不能及时检查浆膜腔穿刺液中的细胞，可在标本中加入（）。
A、甲苯
B、EDTA
C、肝素
D、乙醇
E、枸橼酸钠
血液分析仪测定血红蛋白常用波长为（）。
A、530nm
B、535nm
C、540nm
D、550nm
E、560nm
You are decommissioning domain controllers that hold all forest-wide operations master roles. You need to transfer all forest-wide operations master roles to another domain controller. Which two roles should you transfer（）
ARID master
BPDC emulator
CSchema master
DInfrastructure master
EDomain naming master