单项选择题
A successful authentication attempt by a RADIUS server does not supply a username to the JUNOSsoftware. Which username is used by default?（）
A.root B.local C.radius D.remote
多项选择题 What are three TLVs that support IS-IS extensions for traffic engineering?（）
多项选择题 Which three attributes are advertised to the remote PE in BGP-based VPNs?（）
单项选择题 On what is the Kompella control plane based?（）
