QA Hub

Clear answers to common questions.

What is GitOps?

· DevOps & CI/CD

GitOps uses Git as the single source of truth for infrastructure and applications. Learn how tools like ArgoCD and Flux implement it.

How to use LIMIT and OFFSET

· SQL & Databases

Implement pagination and restrict row counts with LIMIT and OFFSET in SQL queries.

How to test APIs with Postman

· API & REST

Learn how to create collections, write test scripts, and automate API testing workflows with Postman.

What is IaaS vs PaaS vs SaaS

· Cloud Computing

Understand the three primary cloud service models and how they shift management responsibility between provider and customer.

How to version control infrastructure?

· DevOps & CI/CD

Version controlling infrastructure code provides auditability and rollback. Learn best practices for storing and managing IaC.

How to audit API access logs

· API & REST

Discover how access logging and log analysis support API security auditing and compliance requirements.