You need to run a business-critical workload on a fixed set of Compute Engine instances for several months. The workload is stable with the exact amount of resources allocated to it. You want to lower

The correct answer is A. Purchase Committed Use Discounts.. Committed Use Discounts (CUDs) are ideal for stable, predictable workloads running for a defined multi-month period. By committing to a specific resource level for 1 or 3 years, you receive significant discounts (up to ~57% for 1-year, ~70% for 3-year) with absolutely no change t

Submitted by tunde_lagos· Apr 18, 2026Implementing and managing cost controls

Question

You need to run a business-critical workload on a fixed set of Compute Engine instances for several months. The workload is stable with the exact amount of resources allocated to it. You want to lower the costs for this workload without any performance implications. What should you do?

Options

APurchase Committed Use Discounts.
BMigrate the instances to a Managed Instance Group.
CConvert the instances to preemptible virtual machines.
DCreate an Unmanaged Instance Group for the instances used to run the workload.

How the community answered

(29 responses)

A
93% (27)
B
3% (1)
D
3% (1)

Explanation

Committed Use Discounts (CUDs) are ideal for stable, predictable workloads running for a defined multi-month period. By committing to a specific resource level for 1 or 3 years, you receive significant discounts (up to ~57% for 1-year, ~70% for 3-year) with absolutely no change to performance or availability. Preemptible VMs (C) are cheaper but can be terminated at any time by GCP, making them inappropriate for business-critical workloads. Moving to a Managed Instance Group (B) or Unmanaged Instance Group (D) changes the deployment model but does not reduce compute costs on its own.

Topics

#Committed Use Discounts (CUDs)#Cost Optimization#Compute Engine#Virtual Machines

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