CCNP / CCDP Routing (Building Scalable Cisco Networks)/ BSCI (Building Scalable Cisco Internetworks) Exam
 OSPF Practice Questions 

Exam Code 642-801 (BSCN/BSCI)

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Q9. What is the default interval for sending hello packets on multi-access networks configured to use OSPF?

       A.   10

        B.   20

        C.   30

         D.  60

Ans: A

Explanation:  

The "hello" packets are sent periodically out of each interface using IP multicast addresses. The hello interval specifies the frequency in seconds that a router sends hellos. This is 10 seconds on multi access networks.

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