Question

A retail company is migrating 200 on-premises applications to Google Cloud over 18 months. The CTO wants the architecture team to produce a migration plan that helps stakeholders understand dependencies, prioritize which workloads move first, and reduce the risk of failed cutovers. Several applications share databases and have undocumented integrations. What should the team do FIRST when creating the migration plan?

Accepted Answer

Perform an assessment and inventory of the existing applications and their interdependencies, then document them in dependency diagrams to inform migration wave sequencing

Answer

Immediately lift-and-shift all 200 applications to Compute Engine to establish a cloud footprint, then refactor later

Answer

Purchase committed use discounts for the estimated final-state compute capacity to lock in the lowest pricing before migration begins

Answer

Rewrite each application as containerized microservices on GKE before any workload is moved to the cloud