Definition
Metrics are quantifiable measurements used to track and assess the performance, health, and effectiveness of cloud computing systems and services. They provide objective data points that allow teams to understand how their technology is operating against defined goals or benchmarks. In practice, metrics are collected continuously from various sources like application logs, system performance counters, and network traffic analyzers. This data is crucial for identifying trends, detecting anomalies, and making informed decisions about resource allocation, security posture, and operational efficiency. For instance, tracking the average response time of a web application helps determine if it meets user experience expectations. A common point of confusion arises when metrics are conflated with raw logs. metrics are aggregated and analyzed data, whereas logs are discrete event records. Understanding metrics is essential for success on cloud certifications like AWS Certified Solutions Architect Associate and CompTIA Security+.