多项选择题
A.broadcast hellos
B.Level 1 LAN hellos
C.Point-to-point hellos
D.Level 2 point-to-point hellos
多项选择题 WhatarethreeapplicationsforfirewallfiltersinJUNOSsoftware？（）
单项选择题 Youhaveafirewallfiltercontainingtwotermsappliedinaninbounddirectiononacustomerinterface.Youwouldlikethisfiltertoprotectyournetworkfromaspoofeddenialofserviceattack.Whatmatchcriterionshouldbeusedinthefirsttermofthefilter？（）
单项选择题 WhichJUNOSsoftwarefeatureallowsausertodefinespecificnext-hopvaluesforIPpacketsbasedonthesourceIPaddressofthatpacket？（）