Microsoft Azure Architect Design (AZ-301) Practice Exam

Monitoring average response time is crucial for ensuring application responsiveness because it measures how quickly the application responds to user requests. A lower average response time indicates that the application is processing and returning data to users efficiently, resulting in a smoother user experience. If this metric is not within acceptable limits, users may encounter delays, leading to frustration and potentially impacting user retention.

Others performance metrics such as throughput, error rate, and system uptime, while important, do not directly correlate with the responsiveness experienced by users. Throughput refers to the amount of data processed over time, which could be high even if response times are poor. Error rate measures the frequency of errors occurring during interactions, but does not provide insight into how quickly users receive responses. System uptime indicates the availability of the application, which is vital for access but does not reflect how responsive the application is during that time. Therefore, monitoring average response time is essential to maintain an effective and responsive application environment.