带宽是对通信信道（）的度量。 长度。 宽度。 速度。 容量。
You have a single Active Directory directory service domain. You back up your domain controllers on a nightly basis. You perform Group Policy backups on a nightly basis. A Group Policy object （GPO） is accidentally deleted. You need to restore the GPO. What should you do？（） Perform a nonauthoritative restore of the Active Directory database.。 Perform an authoritative restore of the Active Directory database.。 Select the Import Policy option in the Group Policy Object Editor.。 Restore the GPO by using the Group Policy Management Console.。
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（） Windows Server 2008 R2。 Windows Server 2008。 Windows Server 2003。 Windows 2000。
田间检验时，若杂株率最低标准为1，则至少应检查多少株？（） 100株。 200株。 300株。 400株。
Your company has Active Directory Certificate Services (AD CS) and Network Access Protection (NAP) deployed on the network.You need to ensure that NAP policies are enforced on portable computers that use a wireless connection to access the network. What should you do?（） Configure all access points to use 802.1X authentication.。 Configure all portable computers to use MS-CHAP v2 authentication.。 Use the Group Policy Management Console to access the wireless Group Policy settings, and enable the Prevent connections to ad-hoc networks option.。 Use the Group Policy Management Console to access the wireless Group Policy settings, and disable the Prevent connections to infrastructure networks option.。
采用单线时，铁路罐车装卸栈桥应邻近储罐区，栈桥中心与铁路中心线的间距不应小于（）米。
