单项选择题
A.One
B.Two
C.Three
D.Four
单项选择题 YouaredesigningastrategytoperforminplaceupgradeofdomaincontrollerinBostonandSanDiego.Whichmethodshouldyouuse?（）
单项选择题 YouaredesigningaDNSimplementingstrategytomeetthebusinessandtechnicalrequirement.Whichtypeofzoneshouldyouuse?（）
单项选择题 YouaredesigningaremoteaccessstrategytomeetthebusinessandtechnicalRequirement.Whatshouldyoudo?（）