Question
An e-commerce store is preparing for an annual holiday sale. Previously, this sale has increased the number of transactions between two and ten times the normal level of transactions. A cloud administrator wants to implement a process to scale the web server seamlessly. The goal is to automate changes only when necessary and with minimal cost.
Which of the following scaling approaches should the administrator use?
- A. Scale horizontally with additional web servers to provide redundancy.
- B. Allow the load to trigger adjustments to the resources. Correct
- C. When traffic increases, adjust the resources using the cloud portal.
- D. Schedule the environment to scale resources before the sale begins.
Explanation
Load-triggered (dynamic) autoscaling adds resources only when demand actually rises and removes them when it falls, so it is automated and keeps cost to a minimum even though the increase varies between two and ten times. Adding servers up front or scheduling scaling before the sale provisions capacity that may not be needed, and adjusting resources manually in the portal is not automated or seamless.
