400-007: Cisco Certified Design ExpertDemo

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QuestionQ148

Business Strategy Design

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Refer to the table. A customer is evaluating connectivity options for a DCI between two production data centers to support a large-scale migration project. The migration is estimated to take 20 months to complete but could extend by an additional 10 months if issues occur. All connectivity options meet the workload-migration requirements. Which transport technology offers the best ROI based on cost and flexibility?

  • A DWDM over dark fiber
  • B MPLS
  • C CWDM over dark fiber
  • D Metro Ethernet
Explanation

Metro Ethernet provides a 36-month term, covering both the expected 20-month migration and a possible extension to 30 months without requiring a renewal. Its $65,000 CAPEX, $100,000 annual OPEX, and $5,000 installation fee total $170,000, making it the lowest-cost option while accommodating the full potential project duration.

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