Exam Professional Cloud Architect topic 1 question 155 discussion

Answer is D. 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.

It's definitely D. See the reference at the following link that says "The recommendation algorithm is suited to workloads that follow weekly patterns", which matches the part of the questions that says "consistent usage pattern over multiple weeks": https://cloud.google.com/compute/docs/instances/apply-machine-type-recommendations-for-instances Option A also has two problems; 1. It only focuses on CPU, but the question says "CPU and memory" 2. The question does not mention anything about horizontal scalability

I choose A at first, because I thought that the Rightsizing Recommendations took various days to offer the estimate stats. But according to this article: https://cloud.google.com/migrate/compute-engine/docs/4.11/concepts/planning-a-migration/cloud-instance-rightsizing While it needs a week to give a proper estimate, it can give an estimate with less time too (But the accuracy decreases) "For better recommendations, Migrate for Compute Engine recommends monitoring the migrated workloads for at least seven consecutive days (or one typical business week). Migrate for Compute Engine warns you when the monitoring period is insufficient for an adequate recommendation. Even if the monitoring period is insufficient, Migrate for Compute Engine still offers a cost-optimized recommendation based on the data available."

D make sense.

D is correct

Option D would be the best option to optimize resource usage for the lowest cost when migrating third-party applications from optimized on-premises virtual machines to Google Cloud.

Answer is D. Similar than third-party convince me...

why most of the answers selected by host is INCORRECT? Is it intentional to misguide the folks?

i choose D as it's best practice create an instance with similar configuration as on premise and check metrics

D is the right one because of Rightsizing option from GCP

D is the correct answer

D is ok

I agree with D is the most accurate

D is correct

A, application may not support horizontal scaling and may not run in instances whith small cpu B, dockerize third-party applications is not a requirement....Complex and costly C, too expensive D, simple and works

A, the benefit of moving to cloud is scaling based on load, start with min infra and scale-up based on usage.

A - you cannot expect application to behavior similar in 2 different envior met without a test. B - App Engine is costly C- Varing cpu and memory cannot be doone. D- correa.