Final answer:
Lambdas are provisioned through serverless computing, where the cloud provider dynamically manages the allocation of resources using containers, abstracting away the underlying servers or virtual machines.
Step-by-step explanation:
Lambdas are provisioned through serverless computing. Serverless computing is a cloud-computing execution model where the cloud provider dynamically manages the allocation and provisioning of servers. A lambda function is a piece of code that runs in response to events and automatically manages the computing resources required by that code.
It is essentially a function as a service (FaaS) platform where you upload your code, and the provider takes care of the rest. The provider uses containers to isolate and manage the resources for lambdas, but this is abstracted away from the user. Lambdas are not directly provisioned through virtual machines or physical servers by the end-users.