Designated Intermediate System (DIS) JN0-364 Practice Questions (Page 5)

Questions 21–23

1. 21foundation · easy

   Which router generates the pseudonode LSP on an IS-IS broadcast segment?

   • AThe Designated Intermediate System (DIS)
   • BThe router with the lowest system ID
   • CAny router on the segment
   • DThe router that first detects a topology change
   Reveal Solution Discussion Select an answer first
2. 22expert · hard

   A network engineer is troubleshooting an IS-IS broadcast segment with four routers. The DIS is Router A. The engineer notices that Router B and Router C are not exchanging LSPs directly with each other. The engineer suspects a problem. What is the most accurate assessment of this situation?

   • AThis indicates a misconfiguration; all routers on a broadcast segment should exchange LSPs directly.
   • BThis indicates that Router B and Router C are not forming adjacencies at all.
   • CThis is normal behavior; non-DIS routers only exchange LSPs through the DIS.
   • DThis indicates that Router A is not functioning correctly as the DIS.
   Reveal Solution Discussion Select an answer first
3. 23application · medium

   A network engineer is monitoring an IS-IS broadcast segment with five routers. The DIS is Router X. The engineer notices that Router X is sending PSNPs more frequently than the other routers. What is the most likely reason for this behavior?

   • ARouter X is flooding its own LSPs more frequently.
   • BRouter X is sending CSNPs to synchronize the database.
   • CRouter X is acknowledging LSPs received from other routers on the segment.
   • DRouter X is performing a new DIS election.
   Reveal Solution Discussion Select an answer first