Refer to the Exhibit.
You are asked to configure an OSPF network based on the topology shown in the exhibit. You must keep the link-state database in Area 1 as small as possible. What will accomplish this?
A.
Area 0 should be configured as a stub area so that it will not announce routes into Area 1.
B.
Area 1 should be configured as an NSSA to limit the size of the link-state database.
C.
Area 1 should be configured as a stub area with no-summaries to limit the size of the link-state database.
D.
Area 0 should be configured with a virtual link to R4 to limit the size of the Area 1 link-state database.
Should be B.
The right answeer is B, SUTB area do not support external routes as RIP in our case