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Answer: Cloud Functions
The correct answer is **D. Cloud Functions**, as it is designed to automatically scale based on demand, with no invocations when there is no demand. Cloud Functions is a serverless execution environment that allows you to build and connect cloud services by writing simple, single-purpose functions attached to events from your cloud infrastructure. These functions execute in a fully managed environment, eliminating the need to provision infrastructure or manage servers. Google manages the software and infrastructure, automatically provisioning resources in response to events. This enables a function to scale from a few invocations a day to millions without any manual intervention. Options A, B, and C are incorrect because they require configuration to scale down and may need warm-up time to scale back up, unlike Cloud Functions.
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A company is developing an application that stores images in a Cloud Storage bucket and requires the generation of thumbnails as well as resizing the images. They are looking for a managed service that can automatically scale from zero to full scale and back down to zero without manual intervention. Which Google Cloud Platform (GCP) service meets this requirement?
A
Google Compute Engine
B
Google Kubernetes Engine
C
Google App Engine
D
Cloud Functions