单项选择题
A.point-product security
B.endpointsecurity
C.network infrastructure security
D.secure access and threat defense
单项选择题 WhichprogramisfoundinTrainingandEventscontainsinformationaboutcertificationandadditionalCiscoeducationalresourcesthatenableyoutofurtheryourprofessionalopportunities？（）
多项选择题 InaCiscoSDN，everyelementinthenetworkactsasapointofdefense.WhichtwobestdescribethefeaturesofCiscoSDN？（）
单项选择题 CiscoCatalyst_switchesfitintheaccessarea.（）