多项选择题
A.route filtering
B.protect the routing engine
C.securing the router control plane
D.protect against hidden bridge loops
E.protect against denial of service attacks
单项选择题 Youhaveafirewallfiltercontainingtwotermsappliedinaninbounddirectiononacustomerinterface.Youwouldlikethisfiltertoprotectyournetworkfromaspoofeddenialofserviceattack.Whatmatchcriterionshouldbeusedinthefirsttermofthefilter？（）
单项选择题 WhichJUNOSsoftwarefeatureallowsausertodefinespecificnext-hopvaluesforIPpacketsbasedonthesourceIPaddressofthatpacket？（）
单项选择题 WhichextensiontotheOSPFv2protocolsupportstrafficengineering？（）