🔄 Multi-Area OSPF - ENCOR Practice Questions

Deep dive into multi-area OSPF: area types (stub, NSSA, totally stubby), LSA types, virtual links, route summarization, and OSPF path selection in enterprise networks.

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ENCOR OSPF Advanced Question Bank (5 Questions)

Browse all 5 practice questions covering Multi-Area OSPF 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 1Infrastructure

    What type of LSAs are blocked from entering an OSPF totally stubby area?

    AType 1 and Type 2 only
    BType 3, Type 4, and Type 5
    CAll LSA types
    DType 5 only

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  2. Question 2Infrastructure

    Which OSPF LSA type describes external routes redistributed into OSPF?

    AType 1 (Router LSA)
    BType 3 (Summary LSA)
    CType 5 (External LSA)
    DType 7 (NSSA External LSA)

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  3. Question 3Infrastructure

    What do OSPF Type 3 LSAs represent?

    ARouter links within an area
    BSummary LSAs generated by ABRs advertising inter-area routes (networks from one area summarized into another area)
    CExternal routes from redistribution
    DASBR locations

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  4. Question 4Infrastructure

    Which OSPF LSA type is generated by an ASBR and carries information about external routes redistributed into OSPF?

    AType 1 – Router LSA
    BType 3 – Summary LSA
    CType 5 – AS External LSA
    DType 7 – NSSA External LSA

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  5. Question 5Infrastructure

    What traffic is filtered in an OSPF Totally Stubby Area?

    AOnly external routes
    BBoth external routes (Type 5 LSAs) and inter-area routes (Type 3 LSAs) are blocked — only a default route is injected by the ABR
    CAll routes are blocked
    DNo routes are filtered

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Key OSPF Advanced Concepts for ENCOR

ospfmulti-areastubnssalsavirtual linksummarizationabrasbr

ENCOR OSPF Advanced Exam Tips

Multi-Area OSPF questions in ENCOR are typically scenario-based. Focus on enterprise network architecture, virtualization, infrastructure, and assurance. Priority concepts: ospf, multi-area, stub, nssa, lsa, virtual link.

What ENCOR Expects

  • Anchor your answer in select the design that optimizes convergence, scalability, and security across the campus and WAN.
  • OSPF Advanced 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 OSPF Advanced 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 OSPF Advanced Concepts

  • Know the core OSPF Advanced building blocks cold: ospf, multi-area, stub, nssa.
  • Review the edge-case features and limits for lsa, virtual link; these details are commonly used to differentiate answer choices.
  • Practice service-integration reasoning: how OSPF Advanced pairs with Infrastructure, EIGRP, BGP in real deployment patterns.
  • For ENCOR, explain why the chosen OSPF Advanced 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 OSPF Advanced 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 OSPF Advanced 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 OSPF Advanced without relying on default-open assumptions?
  • Can you describe how OSPF Advanced integrates with Infrastructure and EIGRP during failure, scaling, and monitoring events?

Exam Domains Covering OSPF Advanced

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