Question 1

CASE STUDY: RetailMart

Overview: Global e-commerce, 5,000 employees. Legacy monolith on VMware, 20TB Oracle DB on-prem.
Business: Modernize to microservices, 100% uptime during Black Friday (10x traffic), real-time inventory sync, exit data center in 2 years.
Executives:
- CEO: "Innovate faster to beat online-only competitors."
- CFO: "End hardware CAPEX. Move to pure OPEX."
- CTO: "Break monolith safely. Zero downtime during transition."
Tech: Migrate off Oracle to open-source, containerize, secure hybrid connectivity during transition, automated scaling.
Constraints: Zero downtime for storefront, heavy reliance on Oracle stored procedures, all hybrid traffic must be private/encrypted.

Which migration approach should you recommend to safely break down the monolith with zero downtime?

Accepted Answer

Identify the architectural pattern designed specifically for safely dismantling monolithic applications.

Question 2

What mistakes do candidates make on this GCP PCA question?

Accepted Answer

Choosing GCVE (C) - while GCVE is great for VMware lift-and-shift, the prompt explicitly requires modernizing to microservices.

How to approach this question

Full Answer

Common mistakes

Practice the full GCP Professional Cloud Architect Practice Exam 4

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