300-420 Question #230: Real Exam Question with Answer & Explanation

Question

A company needs to increase access port capacity on one floor of a building. They want to leverage the existing catalyst access switch. There is no problem with uplink bandwidth capacity. However, no additional uplinks can be added because no ports are available on the distribution switches. Which solution must the company choose to provide additional access ports?

Options

• AVDC
• BVSS
• CEtherchannel
• DStackwise

Explanation

{"question_number": 9, "question": "Adding access port capacity without additional uplinks", "correct_answer": "D", "explanation": "Cisco StackWise (or StackWise Virtual/StackWise-480 depending on the platform) allows multiple physical Catalyst switches to be interconnected via stacking cables and operate as a single logical switch. When an additional switch is added to the stack, its access ports become available as part of the unified logical switch - port capacity increases without requiring new uplinks to the distribution layer, since the stack shares the existing uplinks of the original switch. VDC (A) is a Nexus-platform feature that partitions one physical switch into multiple logical switches - it does not add ports. VSS (B) is a distribution/core-layer technology combining two switches for redundancy, not for expanding access ports. EtherChannel (C) aggregates existing links for bandwidth and redundancy but does not add new access ports.", "generated_by": "claude-sonnet", "llm_judge_score": 4}

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