220-1101 Question #166: Real Exam Question with Answer & Explanation

Question

A company has a web application that is in the cloud on a multitenant server. The web application is connected to a database that is also in the cloud. Which of the following cloud computing concepts does this describe?

Options

• AIaaS
• BPaaS
• CSaaS
• DDaaS

Explanation

Running a custom web application and its database in a cloud environment where the provider manages the underlying infrastructure and platform indicates Platform as a Service (PaaS).

Common mistakes.

• A. Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, giving users control over operating systems, applications, and middleware, but the provider manages only the virtualization, servers, storage, and networking, requiring more customer management than described.
• C. Software as a Service (SaaS) delivers ready-to-use software applications over the internet. The user only interacts with the application, not managing any underlying infrastructure or platform, which is not the case for a company running its own custom web application.
• D. DaaS (Desktop as a Service) is a form of virtual desktop infrastructure where the desktop environment is hosted by a third-party cloud provider, which is unrelated to hosting web applications and databases.

Concept tested. Platform as a Service (PaaS) characteristics

Reference. https://azure.microsoft.com/en-us/resources/cloud-computing-dictionary/what-is-paas/

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