单项选择题
Which type of firewall is needed to open appropriate UDP ports required for RTP streams？（）
A.Stateful firewall B.Proxy firewall C.Packet filtering firewall D.Stateless firewall
单项选择题 Forthefollowingstatements，whichoneisperceivedasadrawbackofimplementingFibreChannelAuthenticationProtocol（FCAP）？（）
单项选择题 Whichfirewallbestpracticescanhelpmitigatewormandotherautomatedattacks？（）
单项选择题 Whichoneisthemostimportantbasedonthefollowingcommonelementsofanetworkdesign？（）
