PIM Modes JN0-664 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   Which multicast group addresses are used by Auto-RP for announcements and discovery?

   • A224.0.0.1 and 224.0.0.2
   • B224.0.1.39 and 224.0.1.40
   • C224.0.0.13 and 224.0.0.22
   • D239.0.0.0 and 239.255.255.255
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   In PIM Sparse Mode, which router initiates the switchover from the shared tree to the shortest path tree (SPT)?

   • AThe Bootstrap Router (BSR).
   • BThe Rendezvous Point (RP).
   • CThe first-hop router.
   • DThe last-hop router.
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

   What is a key benefit of using a static RP in PIM Sparse Mode?

   • AIt allows the RP to be automatically elected based on priority.
   • BIt automatically adapts to network topology changes.
   • CIt eliminates the need for BSR or Auto-RP protocols.
   • DIt provides redundancy without additional configuration.
   Reveal Solution Discussion Select an answer first
5. 24application · easy

   A network engineer is evaluating PIM dense mode for a new multicast deployment. The network has a small number of receivers and a large number of sources. Which statement correctly describes a disadvantage of using dense mode in this scenario?

   • ADense mode floods traffic to all routers, which wastes bandwidth when there are few receivers.
   • BDense mode does not support pruning, so all traffic is always flooded.
   • CDense mode is only suitable for networks with a large number of receivers.
   • DDense mode requires an RP, which adds complexity.
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   What is a primary limitation of using a static RP in a large PIM Sparse Mode network?

   • AIt requires manual configuration on every router, which is error-prone and hard to scale.
   • BIt only works with dense mode groups.
   • CIt cannot support multiple multicast groups.
   • DIt automatically fails over to a backup RP if the primary fails.
   Reveal Solution Discussion Select an answer first