Which difference must an engineer consider when Implementing Inter-domain and Intra-domain multicast routing on the network?

Question

Options

• AIntra-domain routing allows the service provider to control incoming and outgoing multicast data
• BIntra-domain routing uses the PIM and MBGP protocols for multicast routing, but inter-domain
• CIntra-domain routing is dependent on the RP router within the same SP network, but inter-domain
• DInter-domain routing supports policy routing to connect different multicast domains using PIM-SM,

• A
  3% (1)
• B
  3% (1)
• C
  87% (33)
• D
  8% (3)

Explanation

The key architectural difference between intra-domain and inter-domain multicast is the scope and placement of the Rendezvous Point (RP). In intra-domain multicast (PIM-SM within a single service provider network), all routers within that domain share a common RP, and PIM handles source registration and group membership internally. In inter-domain multicast, the multicast routing crosses administrative domain boundaries. Each domain has its own RP, and protocols like MSDP (Multicast Source Discovery Protocol) and MBGP (Multiprotocol BGP) are required to discover sources and exchange multicast routing information between separate domains. The RP dependency fundamentally changes: intra-domain relies on a single shared RP within the SP, while inter-domain requires inter-RP communication mechanisms.

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