多项选择题 YouaredesigningaDNSstrategytomeetthebusinessandtechnicalrequirements.Whichtwoactionsshouldyouperform？（）

单项选择题 You are designing a strategy to allow users to have remote access to internal resources.   Which service or services should you allow on the public interface of the NAT Server？（）

多项选择题 You are designing the Active Directory site topology to meet the business and technical requirements.  Which site or sites will require universal group membership caching？（）