单项选择题
What is the purpose of IS-IS level boundaries?（）
A. Restrain the formation of adjacencies.
B. Control the flooding scope of link-state PDUs.
C. Partition the L2 backbone into multiple domains.
D. Aggregate L1 domains into a contiguous backbone.
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相关考题
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单项选择题
Which mechanism accommodates the use of overlapping addresses in 2547bis VPNs?（）
A. policies
B. route origins
C. route targets
D. route distinguishers -
多项选择题
In which two ways can the router ID selection be controlled?（）
A. Manually assign rid.
B. configure local-address.
C. enable the fxp0 interface.
D. Assign nonmartian address to lo0. -
单项选择题
Why does IS-IS use the SPF algorithm?（）
A. to determine the pseudonode ID
B. to determine the next hop to a given destination
C. to determine the complete path to a given destination
D. to determine the number of routers present in a given area
