Final answer:
The correct answer is FALSE. PaaS that hosts web apps cannot be configured to automatically scale on demand.
Step-by-step explanation:
The correct answer is a) FALSE.
PaaS (Platform as a Service) that hosts web apps can be configured to automatically scale on demand. This means that as the web app experiences increased traffic or demand, the PaaS can automatically allocate additional resources such as servers or storage to handle the load. This is known as horizontal scaling.
On the other hand, vertical scaling refers to increasing the capacity of a single server to handle more traffic, whereas horizontal scaling refers to adding more servers to distribute the load. Both vertical and horizontal scaling can be used to handle increased demand, but automatic scaling, as mentioned in the question, is typically associated with horizontal scaling. Therefore, the statement that PaaS can be configured to automatically scale on demand is FALSE.