OSPF Packet Types JN0-364 Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   Two OSPF routers are forming an adjacency over a point-to-point link. The adjacency is stuck in the ExStart state. The engineer checks the logs and sees that the routers are exchanging Database Description packets but cannot agree on the master/slave relationship. What is the most likely cause of this issue?

   • AThe routers are using different authentication types.
   • BThe routers have the same Router ID.
   • CThe routers have different MTU settings on the interface.
   • DThe routers have different dead intervals configured.
   Reveal Solution Discussion Select an answer first
2. 12application · easy

   A network engineer is configuring OSPF on a new link. The engineer wants to ensure that the routers quickly detect if a neighbor goes down. The engineer sets the hello interval to 5 seconds. What should the dead interval be set to in order to maintain the default ratio?

   • A10 seconds.
   • B5 seconds.
   • C40 seconds.
   • D20 seconds.
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A network engineer is configuring two new Juniper routers in the same OSPF area. The routers have formed a full adjacency, but the engineer notices that the link-state databases are not synchronized. During the adjacency formation, which packet type is used to exchange the list of link-state summaries, and what is the next packet type sent if a router needs a more recent version of a specific LSA?

   • AHello packets are used for summaries; Database Description packets are sent to request specific LSAs.
   • BDatabase Description packets are used for summaries; Link State Request packets are sent to request specific LSAs.
   • CLink State Request packets are used for summaries; Link State Update packets are sent to request specific LSAs.
   • DLink State Update packets are used for summaries; Link State Acknowledgment packets are sent to request specific LSAs.
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5. 14foundation · easy

   What is the primary purpose of the OSPF Hello packet?

   • ATo acknowledge receipt of LSAs
   • BTo exchange full link-state database entries
   • CTo request specific LSAs from a neighbor
   • DTo discover neighbors and maintain neighbor relationships
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6. 15application · easy

   A network administrator is configuring OSPF on a new link between two routers. The link is a point-to-point connection. The administrator wants to ensure that the routers quickly detect if the link fails. Which field in the Hello packet is used to determine the dead interval, and what is the default relationship between the hello interval and the dead interval on Juniper devices?

   • AThe Router Priority field; the dead interval is always twice the hello interval.
   • BThe Checksum field; the dead interval is configured separately and is not related to the hello interval.
   • CThe Dead Interval field; the dead interval is typically four times the hello interval by default.
   • DThe Neighbor field; the dead interval is always equal to the hello interval.
   Reveal Solution Discussion Select an answer first