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?
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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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