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Lessons (14)
- MVC, MVP & MVVM
… Model–View–ViewModel The ViewModel exposes observable state and commands . The View binds to them, so when the …
- Views, Triggers & Stored Procedures
Interview answers for views, materialized views, triggers and stored procedures. Covers PDF questions 20, 24 and 27-30 …
- Database Internals, Replication and Scaling
… Materialized views and denormalized projections speed known reads but need refresh/freshness rules. Compression saves storage/network at …
- Premiere-Night Video Streaming
… Put copies close to viewers before the doors open. ![Premiere streaming splits control-plane APIs from a CDN …
- DBMS Foundations, Keys & Normalization
… Abstraction, dependencies and design Physical level describes storage; logical level describes entities and relations; view level exposes a …
- What Is Apache Kafka?
… They had dozens of systems that all needed the same data (page views, profile updates, messages), and point …
- Layered (N-Tier) Architecture
… mermaid flowchart TB P["🖥️ Presentation<br/ controllers, views"] -- B["⚙️ Business<br/ services, rules"] B -- D["🗃️ Persistence …
- Clean Architecture in Depth
… V as View / HTTP response C- UC: execute(requestModel) UC- P: present(responseModel) P- V: view model (formatted …
- React vs Vue vs Angular
… signals (+ zone.js legacy)"] A1[signal changes] -- A2[dependents are notified] -- A3[update affected views] end - React re …
- How Browsers Render a Page
… Layout (reflow) The browser calculates the exact position and size of every box, based on the viewport width …
- Topics, Partitions & Offsets
… named stream of related events: orders , payments , page-views , user-signups . bash kafka-topics.sh --create --topic orders …
- Authentication, Authorization & API Security
… based) Permissions attached to roles admin can delete, viewer can read ABAC (attribute-based) Rules over attributes "Managers …
- CQRS & Event Sourcing
… With CQRS, a projector keeps an order summaries view with exactly those fields, so one fast query, no …
- Choosing an Architecture
… DB; changes cross all layers MVC / MVVM Separate view from model and logic UI code (server pages, SPAs …