Developing Solutions for Microsoft Azure (AZ-204) Practice Exam

Which factor can influence the decision to use autoscaling for a web application?

1. Static user base

2. Frequent updates with downtime

3. Fluctuating traffic patterns

4. Fixed computational requirements

The correct answer is: Fluctuating traffic patterns

When considering the need for autoscaling in a web application, fluctuating traffic patterns are a critical factor. Autoscaling allows resources to dynamically adjust based on the demand for the application. This means that during periods of high traffic, the system can automatically allocate more resources to handle the increased load, ensuring that performance remains optimal and users do not experience delays or downtime. Conversely, during periods of low traffic, autoscaling can reduce resources to save on costs. In contrast, a static user base would not require autoscaling since the demand remains constant and predictable. Frequent updates with downtime indicate that the application may not be reliable or may require maintenance windows, making autoscaling less relevant. Lastly, fixed computational requirements suggest that the application's resource needs are stable and do not fluctuate, thus not necessitating the benefits of autoscaling. Therefore, the ability to handle varying levels of traffic efficiently makes fluctuating traffic patterns a significant factor influencing the decision to implement autoscaling for a web application.