AZ-305 Question 204
Select 2Litware, Inc. is preparing to migrate several on-premises Windows Server workloads to Azure. They want to avoid oversizing or undersizing resources and need accurate cost estimates before finalizing their migration plan. You are tasked with designing their evaluation approach. Which TWO actions should you recommend to ensure accurate sizing and cost estimates?
- A
Deploy the Azure Migrate appliance on-premises to gather performance data for at least two weeks, then run a performance-based assessment in Azure Migrate.
- B
Rely on average usage metrics from publicly available benchmarks to estimate all VM sizes in Azure.
- C
Immediately lift-and-shift each VM with minimal allocated resources to reduce costs and optimize sizing over time.
- D
Use dependency mapping in Azure Migrate to group interdependent servers and analyze each group’s resource utilization in the assessment report.
Show answer and explanation
Correct answers: A, D
Explanation
By using the Azure Migrate appliance to capture real utilization over an extended period and leveraging dependency mapping, you can generate accurate performance-based cost and sizing estimates. This aligns with Microsoft best practices illustrated in Azure Migrate documentation (https://learn.microsoft.com/azure/migrate), ensuring that workloads are neither over-provisioned nor under-provisioned when migrated to Azure.
- A. Correct.
Correct. Installing the Azure Migrate appliance on-premises to collect usage data ensures the assessment is based on real consumption over time. Performance-based assessments then utilize actual CPU, memory, and storage metrics to provide accurate sizing and cost estimates.
- B. Incorrect.
Incorrect. Although industry benchmarks might provide generic sizing guidance, they are not tailored to Litware’s specific usage patterns. Relying solely on benchmarks often leads to underestimation or overestimation of required resources.
- C. Incorrect.
Incorrect. Immediately scaling down all VMs risks performance bottlenecks and might lead to underestimated sizing requirements and unpredictable costs. Proper assessment before migration is necessary for accuracy.
- D. Correct.
Correct. Dependency mapping helps identify how servers communicate with each other, ensuring accurate groupings and resource evaluations. This avoids migrating isolated components without seeing their interdependencies, leading to better sizing and cost projections.