300-420 Question #33: Real Exam Question with Answer & Explanation

Question

Which design consideration should be observed when EIGRP is configured on Data Center switches?

Options

• APerform manual summarization on all Layer 3 interfaces to minimize the size of the routing table.
• BPrevent unnecessary EIGRP neighborships from forming across switch virtual interfaces.
• CLower EIGRP hello and hold timers to their minimum settings to ensure rapid route
• DConfigure multiple EIGRP autonomous systems to segment Data Center services and

Explanation

{"question_number": 4, "correct_answer": "A", "explanation": "When deploying EIGRP in a Data Center environment, performing manual summarization on all Layer 3 interfaces (A) is a key design consideration. Data centers have a large number of subnets and VLANs; without summarization, each individual prefix propagates throughout the routing domain, causing routing tables to grow unnecessarily large and increasing convergence time. Manual summarization at aggregation or distribution boundaries reduces the number of routes advertised, minimizes routing table size, and limits the blast radius of topology changes. Option B (preventing EIGRP neighborships across SVIs) is addressed using passive-interface but is not the primary design concern cited. Option C (lowering timers to minimum) is generally inadvisable as it can cause instability. Option D (multiple EIGRP AS) adds complexity without clear benefit in most DC designs.", "generated_by": "claude-sonnet", "llm_judge_score": 4}

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