📡 IP Multicast - ENCOR Practice Questions

Study multicast addressing, IGMP, PIM sparse mode, PIM dense mode, rendezvous points, multicast routing, and enterprise multicast deployment scenarios.

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1Exam Domains

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ENCOR Multicast Question Bank (3 Questions)

Browse all 3 practice questions covering IP Multicast for the ENCOR certification exam. Answers are intentionally hidden on this page so you can self-test first before checking results in quiz mode.

  1. Question 1Virtualization

    Which protocol is used for multicast distribution tree building in PIM Sparse Mode?

    AIGMP
    BPIM-SM using Rendezvous Point (RP)
    CDVMRP
    DMSDP

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  2. Question 2Infrastructure

    What is the purpose of PIM (Protocol Independent Multicast) Sparse Mode?

    ATo flood multicast everywhere
    BTo build shared trees (via RP) and shortest-path trees for efficient multicast delivery only to interested receivers
    CTo replace unicast routing
    DTo encrypt multicast traffic

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  3. Question 3Infrastructure

    Which IGMP version supports source-specific multicast (SSM)?

    AIGMPv1
    BIGMPv2
    CIGMPv3
    DAll versions

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Key Multicast Concepts for ENCOR

multicastigmppimrendezvous pointrpsparse modedense mode239mcast

ENCOR Multicast Exam Tips

IP Multicast questions in ENCOR are typically scenario-based. Focus on enterprise network architecture, virtualization, infrastructure, and assurance. Priority concepts: multicast, igmp, pim, rendezvous point, rp, sparse mode.

What ENCOR Expects

  • Anchor your answer in select the design that optimizes convergence, scalability, and security across the campus and WAN.
  • Multicast scenarios for ENCOR are frequently mapped to Domain 3 (30%), so read the objective carefully before picking controls or architecture.
  • Expect multi-topic scenarios where Multicast interacts with routing, switching, security, or automation patterns rather than appearing as an isolated question.
  • When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Professional) and vendor best practices.

High-Value Multicast Concepts

  • Know the core Multicast building blocks cold: multicast, igmp, pim, rendezvous point.
  • Review the edge-case features and limits for rp, sparse mode; these details are commonly used to differentiate answer choices.
  • Practice service-integration reasoning: how Multicast pairs with Infrastructure, OSPF Advanced, Network Assurance in real deployment patterns.
  • For ENCOR, explain why the chosen Multicast design meets reliability, security, and cost expectations better than the alternatives.

Common ENCOR Traps

  • Watch for mixing OSPF, EIGRP, and BGP behaviors in multi-protocol scenarios.
  • Questions in Infrastructure often include distractors that look correct for Multicast but violate security policy, convergence, or redundancy requirements.
  • Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
  • If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.

Fast Review Checklist

  • Can you compare at least two Multicast implementation paths and justify which one best fits the scenario?
  • Can you map the chosen answer back to Infrastructure (30%) outcomes for ENCOR?
  • Can you explain security and access boundaries for Multicast without relying on default-open assumptions?
  • Can you describe how Multicast integrates with Infrastructure and OSPF Advanced during failure, scaling, and monitoring events?

Exam Domains Covering Multicast

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