单项选择题
A.Plan - Application Readiness Validation
B.Prepare - Proof of Concept
C.Prepare - Technology Strategy Development
D.Plan - Systems Requirements Validation
多项选择题 Whichthreeservicecomponentsbelongtotheoperatephase（）
单项选择题 Whichofthefollowingphasesassessesthecurrentnetworkinfrastructureofacustomer（）
单项选择题 Whichservicecomponentinadetaileddesigndevelopmentfocusesonidentificationandconfigurationoftheactualnetworkcomponents（routers，servers，local-areanetworks，andsoon）tobeincorporatedtorunandsupportaCiscoUnifiedCommunicationssystem.（）