cloud-computing
3 guides
What is observability? Logs, metrics, and traces explainedObservability is the ability to infer a system's internal state from its external outputs. Learn how the three pillars — logs, metrics, and traces — work together, the difference between monitoring and observability, and the four golden signals (latency, traffic, errors, saturation).What is cloud computing? The NIST model explained (IaaS, PaaS, SaaS)Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort. The NIST definition breaks it into five essential characteristics, three service models (SaaS, PaaS, IaaS) and four deployment models (public, private, community, hybrid). This guide explains each part and how to choose between them.What is serverless computing? How serverless and FaaS workServerless computing is a cloud service category where the customer provides application code or data and does not provision, deploy, or manage the underlying hardware or software resources. Functions as a Service (FaaS) is the core execution model: you upload a function and the platform runs it, scales it, and bills you only for actual execution time. This guide explains how serverless works, its benefits and trade-offs, the common anti-patterns, and when it is the right choice. 