Business Requirements — GCP PCA Practice Question 21

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Understand that TCO involves more than just hardware costs; it includes operational overhead, facilities, and CapEx vs OpEx shifts.

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B.Use the Google Cloud Pricing Calculator to estimate cloud costs, factor in the reduction of on-premises CapEx and operational overhead, and calculate the payback period.✓ Correct

Use the Google Cloud Pricing Calculator to estimate cloud costs, factor in the reduction of on-premises CapEx and operational overhead, and calculate the payback period.

When calculating Total Cost of Ownership (TCO) for a cloud migration, it is critical to look beyond a simple 1:1 hardware comparison. A comprehensive TCO analysis includes the cost of the GCP resources (optimized with discounts), minus the savings from retiring on-premises hardware (CapEx), data center facilities (power, cooling, rent), and the operational overhead of maintaining physical infrastructure.

Common mistakes

Comparing physical server costs directly to on-demand VM costs (Option A) is a common mistake that ignores cloud discounts and on-prem operational costs.

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Common mistakes

Practice the full GCP Professional Cloud Architect Practice Exam 7

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