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Which Compute Engine option significantly reduces cost for fault-tolerant batch workloads but allows Google to preempt the VM with 30s notice if capacity is needed elsewhere?
ASole-tenant nodes
BSpot VMs (formerly Preemptible VMs)
CPersistent Disk Hyperdisk Extreme
DConfidential VMs
Answer & Solution
Correct answer: B. Spot VMs (formerly Preemptible VMs)
Spot VMs (the modern name for preemptible VMs) are heavily discounted but can be reclaimed by Google on short notice — perfect for stateless batch / restart-tolerant workloads. Sole-tenant nodes give dedicated hardware (more expensive). Confidential VMs add memory encryption. Hyperdisk Extreme is a high-IOPS disk type.
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