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单选题
Two Level 1 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?（）
A
An Adjacency is formed.
B
No IS-IS PDUs are sent
C
An Adjacency does not form.
D
An Adjacency forms but traffic is not forwarded.
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Routers A and B are connected with a point-to-point OC-3 interface. Each router‘s OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in the same area.How many IS-IS adjacencies exist between the two routers?（）A.0B.1C.2D.3
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Two Level 2 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?()
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IS － IS creates and maintains adjacencies and neighbor relations by using the Hello protocol. For the following options, which are Hello packets used in IS － IS?()
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考题
Refer to the exhibit. On the basis of the configuration provided, how are the Hello packets sent by R2 handled by R5 in OSPF area 5?()
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考题
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考题
单选题IS - IS creates and maintains adjacencies and neighbor relations by using the Hello protocol. For the following options, which are Hello packets used in IS - IS?（）A
A generic HelloB
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考题
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考题
单选题Two Level 2 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?（）A
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考题
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Update packets route reliable change information only to the affected routers.B
Reply packets are multicast to IP address 224.0.0.10 using RTP.C
On high - speed links, hello packets are broadcast every 5 seconds for neighbor discovery.D
Reply packets are used to send routing updates.E
On low - speed links, hello packets are broa dcast every 15 seconds for neighbor discovery.
考题
单选题Routers A and B are connected with a point-to-point OC-3 interface. Each router’s OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in different areas.How many IS-IS adjacencies exist between the two routers？（）A
0B
1C
2D
3
考题
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