单项选择题

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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单项选择题
Two Level 2 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.
单项选择题
What is the maximum number of NET addresses supported on a virtual router?（）

A. 0
B. 1
C. 2
D. 3
单项选择题
Where is the IS-IS Network Entity Title configured?（）

A.per IP interface
B. per virtual router
C. only on LAN interfaces
D. only on WAN interfaces
多项选择题
What are three components of the NET address? （）(Choose three.)

A. Area ID
B. N-selector
C. System ID
D. ISO number
E. MAC address
单项选择题
Where are Level 2 LSPs flooded?（）

A.A
B.B
C.C
D.D
多项选择题
What are three purposes of a PSNP?（）

A.A
B.B
C.C
D.D
E.E
单项选择题
When configuring OSPF on the ERX, what is the default auto-cost reference-bandwidth value?（）

A.A
B.B
C.C
D.D
单项选择题
Which CLI command is used to display BGP-learned routes that are now in the OSPF link-state database?（）

A.A
B.B
C.C
D.D
单项选择题
if all OSPF routers on a broadcast network have the same OSPF priority, which parameter is used to determine the new BDR at the time of a DR failure?（）

A.A
B.B
C.C
D.D
单项选择题
Given the set of routers, each with an interface on the same multi-access network: Which router can never be a designated router on that multi-access network?（）

A.RouterA
B.RouterB
C.RouterC
D.RouterD
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