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What type of router maintains separate link-state database for each area it servers and maintains summarized routes for all area in a OSPF network?
A. ABR
B. ASBR
C. Border Router
D. Inter Router
Correct Answer: A
Explanation/Reference:
An area is interface specific. A router that has all of its interfaces within the same area is called an internal router (IR). A router that has interfaces in multiple areas is called an area border router (ABR).
http://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/7039-1.html#t8
