Question

which of the following services delivers a complete solution that customers may purchase on a pay - as - you - go (payg) basis from a cloud service provider?
a software - as - a - service (saas)
b infrastructure - as - a - service (iaas)
c platform - as - a - service (paas)
d container - as a - service (caas)

Explanation:

• Software - as - a - Service (SaaS): SaaS provides a complete software solution over the internet. Customers can access and use the software on a pay - as - you - go basis without having to worry about infrastructure, installation, or maintenance. For example, many customer relationship management (CRM) systems like Salesforce are offered as SaaS.
• Infrastructure - as - a - Service (IaaS): IaaS provides virtualized computing resources (such as servers, storage, and networking) over the internet. Customers have more control over the infrastructure (e.g., they can install their own operating systems and software on the virtual machines provided), but it is not a complete solution like SaaS. It is more about providing the base infrastructure.
• Platform - as - a - Service (PaaS): PaaS offers a platform for developers to build, deploy, and manage applications. It includes tools like programming languages, databases, and development frameworks. While it simplifies application development, it is not a ready - to - use complete solution for end - users in the same way as SaaS.
• Container - as - a - Service (CaaS): CaaS focuses on managing containers (e.g., Docker containers). It helps in deploying, scaling, and managing containerized applications. It is more of a specialized service within the realm of application deployment and management rather than a complete end - user solution.

Answer:

A. Software - as - a - Service (SaaS)