What cloud services allows developers to create, test, and run solutions on a cloud platform without having to purchase the underlying hardware and software?

The correct answer to the following question will be "PaaS".

Explanation:

PaaS is a cloud model where a third-party supplier usually provides two types of tools, software, and hardware for the users through the Internet to develop the application.

Tendencies include a range of cloud technology underlying elements, including OS, servers, DBMS, middleware, networking equipment, and storage services. The service provider owns, manages, configures and retains each of these features. Extra resources, including data management programs and programming languages, libraries, and various development tools, are offered by PaaS.