4.4 Implement Multicast Services 350-501 Practice Questions (Page 3)

Questions 11–13

1. 11application · medium

   A financial trading firm uses multicast to distribute real-time market data. Each data feed is a separate multicast group, and each feed has a well-known source IP address. The firm wants to prevent receivers from joining groups that are not authorized for their subscription tier. Which combination of technologies should be used to enforce this policy?

   • APIM-SSM with IGMPv3 on the access layer.
   • BPIM-SM with IGMPv3 and a static RP.
   • CPIM-BIDIR with IGMPv3 on the access layer.
   • DPIM-SM with a static RP and IGMPv2 on the access layer.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   What is the primary scalability advantage of PIM Bidirectional mode for many-to-many multicast?

   • AIt maintains only (*,G) state, avoiding per-source (S,G) state
   • BIt eliminates the need for a rendezvous point entirely
   • CIt builds a separate shortest path tree for each source
   • DIt uses IGMPv3 to reduce join latency
   Reveal Solution Discussion Select an answer first
3. 13foundation · easy

   What is a key difference when configuring PIM for IPv6 compared to IPv4?

   • APIMv6 uses OSPFv3 for neighbor discovery instead of hello messages
   • BPIMv6 uses IGMPv3 for group membership instead of MLD
   • CPIMv6 uses IPv6 multicast addresses for PIM control messages
   • DPIMv6 requires IPv6 unicast routing to be disabled
   Reveal Solution Discussion Select an answer first