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H12-821_V1.0 · Question #876

On the rendezvous poin! RP, the rendezvous point is an important PIM router in the network. Whether a static RP or a dynamic RP is set, you can specify which multicast groups the RP provides…

The correct answer is B. FALSE. Option B (FALSE) is correct because the statement overgeneralizes: while a static RP allows administrators to explicitly define which multicast group ranges it serves (typically via an ACL tied to the RP address configuration), a dynamic RP - such as one elected through BSR…

IPv4 Routing Technologies

Question

On the rendezvous poin! RP, the rendezvous point is an important PIM router in the network. Whether a static RP or a dynamic RP is set, you can specify which multicast groups the RP provides services for.

Options

  • ATRUE
  • BFALSE
  • C
  • D

How the community answered

(27 responses)
  • A
    11% (3)
  • B
    81% (22)
  • C
    4% (1)
  • D
    4% (1)

Explanation

Option B (FALSE) is correct because the statement overgeneralizes: while a static RP allows administrators to explicitly define which multicast group ranges it serves (typically via an ACL tied to the RP address configuration), a dynamic RP - such as one elected through BSR (Bootstrap Router) or Auto-RP - determines group-to-RP mappings through the protocol's own election and advertisement process, not through direct administrator specification on the RP itself.

Why A is wrong: The claim that you can always freely specify group ranges "whether static or dynamic" is the flaw. Dynamic RP mechanisms distribute and negotiate group mappings automatically; the administrator influences candidacy, but the final mapping is protocol-driven, not directly specified on the RP.

Memory tip: Think "Static = you Specify; Dynamic = it Decides." Static RPs give you full control over group scope via ACLs; dynamic RPs hand that control to the protocol election process (BSR/Auto-RP), so the administrator's direct specification authority is limited.

Topics

#PIM Multicast#Rendezvous Point#RP Configuration#Static vs Dynamic RP

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