单项选择题
In JUNOS software, which would prevent an OSPF router from importing the 10.0.0.4/30 summaryroute?（）
A. Import policies are not allowed for internal routes, so this is not possible.
B. Export policies are not allowed, so this is not possible.
C. Apply a firewall filter matching 10.0.0/4/30 and reject the route.
D. Apply an import policy matching 10.0.0.4/30 and reject the route.
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?（）
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?（）