An entrepreneur has decided to open an e-commerce site to complement their retail store. After researching
their options, they decide that a PaaS solution will be sufficient. To reduce upfront cost, the entrepreneur
intends to build the site themselves. Which of the following skill-tests will be needed?

A.
Firewall Administration

B.
Web-Server Administration

C.
Security standard development

D.
Application development

Explanation:
Platform as a service (PaaS) is a complete development and deployment environment in the cloud, with
resources that enable you to deliver everything from simple cloud-based apps to sophisticated, cloud-enabled
enterprise applications.
PaaS allows you to avoid the expense and complexity of buying and managing software licenses, the
underlying application infrastructure and middleware or the development tools and other resources. You
manage the applications and services you develop, and the cloud service provider typically manages everything
else.
https://azure.microsoft.com/en-us/overview/what-is-paas/