You are running a batch processing job on Compute Engine that takes 4 hours to complete. The job is fault-tolerant; if a VM shuts down, the job can resume from where it left off. You want to minimize compute costs. Which instance type should you use?

Answer options:

Standard VMs with a 1-year Committed Use Discount.

Spot VMs

Sole-tenant nodes.

E2-micro shared-core instances.

How to approach this question

Match the workload characteristic ('fault-tolerant') with the cheapest compute option.

Full Answer

B.Spot VMs✓ Correct

Spot VMs

Spot VMs (formerly Preemptible VMs) are excess Compute Engine capacity offered at massive discounts. Google can reclaim them at any time. Because the batch job is fault-tolerant and can resume upon interruption, Spot VMs provide the lowest possible cost.

Common mistakes

Choosing CUDs (A) for a workload that doesn't run 24/7.

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