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Answer: Cloud Functions
The correct answer is **D** (Cloud Functions) because 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 that respond to events from your cloud infrastructure. It eliminates the need to manage servers, configure software, or update frameworks, as everything is fully managed by Google. Resources are provisioned automatically in response to events, enabling the function to scale from a few invocations a day to millions without any manual intervention. Options A (Google Compute Engine), B (Google Kubernetes Engine), and C (Google App Engine) are incorrect because they require configuration to scale down and may need warm-up time to scale back up, unlike Cloud Functions which scales seamlessly.
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A company is developing an application that stores images in a Cloud Storage bucket and also needs to generate thumbnails and resize 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
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