多项选择题
A.10.10.10.0/28
B.10.10.255.0/24
C.131.15.0.0/24
D.151.10.10.0/24
E.192.168.11.0/25
单项选择题 YouaredesigningtheplacementofthePDCemulatorroletomeetthebusinessandtechnicalrequirements.InwhichlocationshouldyouplacethePDCemulatorrole?（）
单项选择题 YouaredesigningaDNSinfrastructuretomeettheInternetnameresolutionrequirements.Whatshouldyoudo?（）
单项选择题 YouaredesigningastrategyforimplementingInternetAuthenticationService(IAS)tomeetthebusinessandtechnicalrequirements.Whatshouldyoudo?（）