OSPF Fundamentals JN0-352 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which OSPF LSA type is used by an Area Border Router (ABR) to advertise routes to networks in other areas?

   • AType 1 (Router LSA)
   • BType 3 (Summary LSA)
   • CType 4 (ASBR Summary LSA)
   • DType 2 (Network LSA)
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   Which OSPF packet type is used to discover neighbors and maintain neighbor relationships?

   • ALink-State Acknowledgment (LSAck)
   • BLink-State Request (LSR)
   • CDatabase Description (DBD)
   • DHello
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   How does an OSPF router determine its Router ID by default?

   • AIt uses the hostname of the router converted to an IP address
   • BIt uses the MAC address of the first interface
   • CIt uses the lowest IP address on any active interface
   • DIt uses the highest IP address on any active loopback interface, then the highest IP address on any active physical interface
   Reveal Solution Discussion Select an answer first
5. 14expert · hard

   An OSPF broadcast segment has three routers: R1 (Router ID 1.1.1.1), R2 (Router ID 2.2.2.2), and R3 (Router ID 3.3.3.3). R1 is the DR, R2 is the BDR. R1 fails. What happens to the DR/BDR roles and adjacencies on the segment?

   • AR2 remains the BDR, and R3 becomes the DR.
   • BR3 becomes the DR immediately because it has the highest Router ID.
   • CR2 becomes the DR, and a new election is held for the BDR, which R3 will win because it has the highest Router ID.
   • DA new election is held for both DR and BDR, and R3 becomes the DR.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   Why is it recommended to configure a stable Router ID on an OSPF router?

   • ATo ensure the router can participate in multiple OSPF areas
   • BTo increase the priority of the router in the SPF calculation
   • CTo avoid unnecessary OSPF neighbor resets and routing instability when an interface goes down
   • DTo prevent the router from being elected as the Designated Router
   Reveal Solution Discussion Select an answer first