GCP Professional Cloud Architect Practice Question

A retail company runs 150 virtual machines in its on-premises VMware cluster. Forty of those VMs host Microsoft SQL Server 2019 Standard Edition licensed per core with active Software Assurance (SA). As part of a board presentation, you must generate a 3-year Total Cost of Ownership (TCO) comparison between the current environment and moving the same workloads to Compute Engine. When entering data into the Google Cloud TCO calculator, what should you do to ensure the SQL Server licensing costs are accurately reflected in both the on-premises baseline and the Google Cloud estimate?

Switch the target environment to use Google-managed SQL Server pay-as-you-go pricing and remove the licences from the on-premises baseline to simplify the comparison.
Record the existing SQL Server core licences in the on-premises section and choose the BYOL option for SQL Server in the cloud configuration so licence costs are excluded from the Google Cloud side.
Exclude SQL Server licence costs from both the on-premises and Google Cloud sections, because the licences are already paid for under Software Assurance.
Leave the SQL Server fields at their default values and add the annual Software Assurance cost as a custom line item on the cloud side to keep totals balanced.

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Answer Description

Because the company already owns core-based SQL Server licences with active Software Assurance, those costs should appear only on the on-premises side of the comparison. In the TCO calculator you record the existing licences for the current environment, but you must select the Bring-Your-Own-Licence (BYOL) option for the target Google Cloud deployment. This removes SQL Server licence charges from the cloud estimate while still including them in the on-premises cost model, giving an apples-to-apples view of savings. The other options either double-count licence fees in Google Cloud, omit the on-prem licence cost, or shift the licences to a pay-as-you-go model, all of which would skew the financial analysis.

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