A development team is building a new event-driven web service and wants to focus purely on writing code instead of provisioning servers. They need a cloud execution model in which the provider automatically provisions, scales, and bills for compute resources on demand. Which architecture model best meets this requirement?
Users manually scale and manage virtual machine instances to meet the application workload
The cloud provider's automatic management of resource allocation for executing code without requiring the user to manage infrastructure
Applications are constructed as a suite of small, independent services that perform specific business functions
A system where applications, dependencies, and supporting files are packaged together in a computing environment
In a serverless architecture (often delivered as Function-as-a-Service), the cloud provider is responsible for provisioning, scaling, and managing the infrastructure needed to run the code. Developers supply only their functions, and resources are allocated automatically in response to events or load. In contrast, manually managing virtual machines requires users to size and patch instances themselves, microservices describe an application design pattern rather than a resource model, and containers package software but still need an orchestrator or servers to run.
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