Learn how passkeys replace passwords with a simple, secure way to log in. Understand how they work, why they're safer than passwords, and when to use them.
Learn about different DNS record types like A, AAAA, CNAME, MX, TXT, and NS records. Understand what each record does, when to use them, and how they work together to make the internet function.
Learn how Service Mesh handles traffic between microservices. Understand what problems it solves, when to use it, and see how it works through simple diagrams and real examples.
Learn how Service Discovery helps microservices automatically find and talk to each other. Understand the difference between client-side and server-side discovery, when to use each approach, and see real-world examples with simple diagrams.
Learn the difference between row-oriented and column-oriented database storage. Understand when to use each approach through simple examples and visual diagrams.
Learn how Change Data Capture (CDC) works to automatically keep your cache updated when database data changes. Understand CDC patterns, use cases, and when to use this approach through simple examples and diagrams.
Master Kubernetes resource units - learn the difference between millicores, cores, Mi, Gi, and other CPU and memory notations. Understand what 128Mi, 500m, and other resource values actually mean.
Learn how WebSockets enable real-time, two-way communication between browsers and servers. Understand when to use WebSockets vs traditional HTTP through simple examples and visual diagrams.
Learn the difference between blue-green and canary deployment strategies. Understand how to deploy your applications safely with zero downtime using practical examples and visual diagrams.
Learn about the N+1 query problem through visual examples and practical solutions. Understand why your database queries are slow and how to fix them with eager loading, batching, and other optimization techniques.
Complete cURL command reference for developers. Learn HTTP requests, authentication, file uploads, API testing, and advanced cURL techniques with practical examples and syntax highlighting.
Master CQRS architecture through visual components and system diagrams. Learn when and how to implement Command Query Responsibility Segregation without heavy code examples.
