How to set up a CI/CD pipeline in Azure DevOps
· Cloud Computing
Automate builds, tests, and deployments using Azure Pipelines with YAML definitions and release stages.
QA Hub
Clear answers to common questions.
What is a certificate authority and how does it work
· Cybersecurity
Explanation of certificate authorities, the chain of trust model, how SSL certificates are issued, and why CAs are critical for HTTPS security.
How to implement zero-downtime deployments in Kubernetes
· Kubernetes
Deploy applications to Kubernetes without interrupting traffic using rolling updates and probes.
How to configure CloudFront CDN for static websites
· Cloud Computing
Set up Amazon CloudFront to cache and deliver static website assets from S3 or custom origins with HTTPS, edge caching, and origin access control.
How to implement authentication in React
· React
Secure a React application with login flows, token storage, route guards, and session management.
How to design a real-time chat system
· System Design
Learn WebSocket, polling, and message broker patterns for real-time chat system architectures.
What Is the Difference Between Frontend and Backend
· Tech Fundamentals
Compare the roles, technologies, and responsibilities of frontend and backend development.
What is JavaScript bundling and why does it matter
· JavaScript
Understand JavaScript bundling, how tools like Webpack and Vite combine modules, and the benefits for performance and compatibility.
What is Grafana?
· DevOps & CI/CD
Grafana is a visualization and analytics platform. Learn how it queries multiple data sources and creates interactive dashboards.
How to use JSONB in PostgreSQL
· SQL & Databases
Store, index, and query semi-structured data efficiently using PostgreSQL binary JSON format.