单项选择题
You have a Level 1-only router （Router A） in IS-IS area 49.0001. How does Router A learn how to get to IP prefixed in other areas？（）
A.Router A must have a Level 2 adjacency with the Level 1/Level 2 router in area 49.0001.
B.The Level 1/Level 2 router in area 49.0001 sets the "attached" bit in the Level 2 LSP it floods into area 49.0001.
C.The Level 1/Level 2 router in area 49.0001 sets the "attached" bit in the Level 1 link-state PDU （LSP） it floods into area 49.0001.
D.The Level 1/Level 2 router in area 49.0001 advertises these prefixed into area 49.0001 using a Level 2 LSP it floods into the area.
相关考题
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多项选择题
WhichtwoarevalidIS-ISPDUtypes？（）
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？（）
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？（）
A.Source TCP port
B.Source IP address
C.Destination TCP port
D.Destination IP address
