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RAG and AI agents solve different problems in modern AI systems. Learn how RAG retrieves knowledge, how AI agents reason and take action, and how Agentic RAG combines both approaches.

Retrieval-Augmented Generation (RAG) connects LLMs with external knowledge to produce more relevant and grounded answers. Learn how RAG works, including chunking, embeddings, vector databases, retrieval, reranking, hybrid search, GraphRAG, Agentic RAG and evaluation.

AI agents can interact with tools, APIs, databases and external systems to perform tasks autonomously. Learn the key security risks and practical ways to secure AI agents.

Learn PostgreSQL from scratch with this beginner-friendly guide covering databases, SQL queries, tables, CRUD operations, keys, JOINs, indexes, transactions, and real-world application development.

Learn how Grafana and Loki work together to centralize application logs, query them with LogQL, build dashboards, create alerts, and troubleshoot modern applications.

Grafana is one of the most popular tools for visualizing monitoring data. In this beginner-friendly guide, learn what Grafana is, how dashboards and data sources work, how Grafana connects with Prometheus, and how to create your first monitoring dashboard.

Prometheus is a powerful open-source monitoring tool for modern applications, Kubernetes and cloud infrastructure. Learn how Prometheus collects metrics, how PromQL works, metric types, exporters, Grafana, Alertmanager and how to build a practical monitoring setup.

An API Gateway is the front door to modern applications, connecting clients with backend services while handling routing, authentication, rate limiting, caching, and monitoring. Learn how API Gateways work, why they matter in microservices, and where they fit in modern system design today.

Microservices architecture is a modern approach to building applications as a collection of small, independent services. In this beginner-friendly guide, learn how microservices work, why companies use them, their advantages and challenges, and the best practices for designing reliable systems.

Learn Git and GitHub from scratch with this beginner-friendly guide. Discover how version control works, create repositories, make commits, use branches, merge changes, and collaborate through pull requests. Build Git skills and understand the workflow used by modern software developers.

Discover how WebSocket enables instant, two-way communication between browsers and servers. Learn how it works, where it's used, and why it's essential for modern real-time applications in this beginner-friendly guide.

Learn what n8n is, how workflow automation works, and how to build powerful automations using nodes, triggers, webhooks, APIs, and AI in this beginner-friendly guide.