OSPF Fundamentals JN0-281 Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A data center has a multi-access segment with five OSPF routers. The current DR and BDR are Router A (RID 1.1.1.1, priority 100) and Router B (RID 2.2.2.2, priority 50), respectively. A network engineer adds a new router, Router E (RID 5.5.5.5, priority 200), to the segment. What will happen after Router E is added?

   • ARouter E becomes the BDR, and Router A remains the DR.
   • BRouter A remains the DR, and Router B remains the BDR.
   • CRouter E becomes the new DR, and Router B becomes the BDR.
   • DRouter E becomes the new DR, and Router A becomes the BDR.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which statement accurately describes the structure of the OSPF link-state database?

   • AIt is a single global database shared by all areas without any segmentation
   • BIt is a flat list of all routes learned from all routing protocols
   • CIt is organized by area and contains LSAs that describe routers, networks, and inter-area routes
   • DIt stores only the LSAs originated by the local router
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which OSPF neighbor state indicates that a router has received a Hello packet from a neighbor but the neighbor does not yet see this router in its Hello packet?

   • AFull
   • BInit
   • CDown
   • D2-Way
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A network administrator is troubleshooting an OSPF adjacency issue between two routers. The routers are connected via a point-to-point link. The administrator checks the OSPF neighbor table and sees that the neighbor state is stuck in Init. What is the most likely cause of this issue?

   • AA one-way link issue where only one router is receiving Hello packets.
   • BA mismatch in the OSPF authentication settings.
   • CA mismatch in the OSPF hello interval.
   • DA mismatch in the OSPF area ID.
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   How does an OSPF router determine its router ID when no router ID is manually configured?

   • AIt uses the lowest IP address of any active interface
   • BIt uses the lowest IP address of any active loopback interface, and if none exists, the lowest IP address of any active physical interface
   • CIt uses the MAC address of the first interface to come up
   • DIt uses the highest IP address of any active loopback interface, and if none exists, the highest IP address of any active physical interface
   Reveal Solution Discussion Select an answer first