IBM Cloud Functions is based on which open source serverless platform?

IBM Cloud Functions is built on Apache OpenWhisk, which is an established open-source serverless computing platform. OpenWhisk provides the framework for executing code in response to events or triggers without requiring the user to manage the underlying infrastructure. This means developers can focus on writing their application logic rather than worrying about server management, making it highly efficient for building scalable applications.

Using OpenWhisk allows IBM Cloud Functions to take advantage of a robust and flexible architecture, enabling functions to scale dynamically based on incoming requests. It supports various programming languages and integrates seamlessly with other IBM Cloud services, providing a broad ecosystem for developers.

In contrast, the other options represent different platforms or tools that are not the foundation for IBM Cloud Functions. Microsoft Azure and AWS Lambda are competing cloud service platforms and do not relate directly to IBM’s implementation of serverless computing. Terraform is an infrastructure as code tool, not a serverless computing framework. Therefore, Apache OpenWhisk stands out as the correct answer, highlighting the foundation upon which IBM Cloud Functions operates.