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PROFESSIONAL-CLOUD-ARCHITECT · Question #248

You are migrating third-party applications from optimized on-premises virtual machines to Google Cloud. You are unsure about the optimum CPU and memory options. The applications have a consistent…

The correct answer is D. Create a Compute Engine instance with CPU and memory options similar to your application's. https://cloud.google.com/migrate/compute-engine/docs/4.9/concepts/planning-a-migration/cloud- instance-rightsizing?hl=en "Rightsizing provides two types of recommendations: 1. Performance-based recommendations: Recommends Compute Engine instances based on the CPU and RAM…

Submitted by eva_at· Mar 30, 2026Optimizing technical and business processes

Question

You are migrating third-party applications from optimized on-premises virtual machines to Google Cloud. You are unsure about the optimum CPU and memory options. The applications have a consistent usage pattern across multiple weeks. You want to optimize resource usage for the lowest cost. What should you do?

Options

  • ACreate an instance template with the smallest available machine type, and use an image of the
  • BCreate an App Engine flexible environment, and deploy the third-party application using a
  • CCreate multiple Compute Engine instances with varying CPU and memory options. Install the
  • DCreate a Compute Engine instance with CPU and memory options similar to your application's

How the community answered

(61 responses)
  • A
    3% (2)
  • B
    8% (5)
  • C
    5% (3)
  • D
    84% (51)

Explanation

https://cloud.google.com/migrate/compute-engine/docs/4.9/concepts/planning-a-migration/cloud- instance-rightsizing?hl=en "Rightsizing provides two types of recommendations: 1. Performance-based recommendations: Recommends Compute Engine instances based on the CPU and RAM currently allocated to the on-premises VM. This recommendation is the default. 2. Cost-based recommendations: Recommends Compute Engine instances based on:- The current CPU and RAM configuration of the on-premises VM.- The average usage of this VM during a given period. To use this option, you must activate rightsizing monitoring with vSphere for this group of VMs and allow time for Migrate for Compute Engine to analyze usage.

Topics

#VM rightsizing#Recommender#cost optimization#workload migration

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