An IS-IS level 1-only router is configured within a larger multilevel hierarchy. Which OSPF area
type resembles the routing information in the L1 router’s table?
A.
OSPF default area
B.
OSPF stub area
C.
OSPF NSSA
D.
OSPF NSSA with no summaries
Explanation:
why D ?
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•no-summary—Restricts T3 summary LSAs from flowing into the NSSA area (T7 external LSAs and T3 default route LSAs are still injected into the area)
The backbone is called level 2 (L2) and areas are called level 1(L1)
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