单项选择题
In JUNOS software， which would prevent an OSPF router from importing the 10.0.0.4/30 summary route？（）
A.Import policies are not allowed， so this is not possible.
B.Export policies are not allowed， so this 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.
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单项选择题
WhatisafunctionoftheOSPFType7LSA？（）
A.It describes the reachability of routes in stub areas.
B.It describes the reachability of routes in totally-stubby areas.
C.It describes the reachability of routes in not-so-stubby areas.
D.It describes the reachability of routes in partially-stubby areas. -
多项选择题
WhichthreeauthenticationoptionsdoesIS-ISsupport？（）
A.MD5
B.DES
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D.Unauthenticated
E.Simple password -
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WhichfourcomponentsmakeuptheNetworkEntityTitle（NET）ofanIS-ISrouter？（）
A.AF
B.AFI
C.MAC
D.Area
E.SysID
F.A-Selector
G.N-Selector
H.IP-address
