单项选择题
A. 2500
B. 3000
C. 5000
D. 6500
单项选择题 TheCisconetwork-basedvirtualfirewallservicesolutionhelpsserviceproviderstodelivercost-effective，scalable，integratedsecurityservicesforenterprisecustomersusingCiscoplatforms.Whatisavirtualfirewall？（）
单项选择题 WhichprotocolwouldprovideblockaccesstoremotestorageoverWANlinks？（）
多项选择题 CiscoIDSsensorsformtheeyesandearsofyourCisconetworkintrusiondetectionsystem. Placingsensorscorrectlythroughoutyournetworkiscrucialtosuccessfullyimplementingyour Ciscointrusiondetectionsystem.WherecananIPSsensorbeplacedinanenterprisenetwork？（）