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H12-821_V1.0 · Question #41

Which of the following descriptions about OSPF default routing is wrong?

The correct answer is D. ASBR generates an AS-External LSA of type 5 or default LSA of type 7, which is used to guide routers in the autonomous system (AS) to access the outside of the autonomous system. See the full explanation below for the reasoning.

Question

Which of the following descriptions about OSPF default routing is wrong?

Options

  • AThe OSPF default route can be issued by the Area Border Router (ABR) to issue Type 3 default LSAs to guide routers in the area to forward packets between areas
  • BWhen the router has no exact matching route, it can forward the message through the default route
  • CDue to the hierarchical management of OSPF routes, the priority of class 5 and class 7 default routes is higher than that of class 3 default routes
  • DASBR generates an AS-External LSA of type 5 or default LSA of type 7, which is used to guide routers in the autonomous system (AS) to access the outside of the autonomous system

How the community answered

(58 responses)
  • A
    7% (4)
  • B
    3% (2)
  • C
    12% (7)
  • D
    78% (45)

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