Description
- Terraform Ansible GitHub GitLab, Jenkins, Microservices Architecture Interview Questions and Answers basic to Advanced, Real-time Scenario-Based and Coding Based
 Terraform Ansible GitHub GitLab, Jenkins, Microservices Architecture
- Â Foundations: Terraform basics (state, modules); Ansible playbooks and roles; Git workflows; GitHub/GitLab CI basics; Jenkins pipeline fundamentals; microservices concepts (API, service boundaries, containers).
- Â Practical skills: Write reusable Terraform modules; author idempotent Ansible roles; create pipeline-as-code (GitHub Actions/GitLab CI/Jenkinsfile); containerize services and run simple deployments.
- Â Intermediate: Remote state and drift management; Ansible for configuration at scale and dynamic inventories; advanced CI (parallel jobs, artifacts, secrets); Jenkins shared libraries; microservices patterns (circuit breaker, bulkhead, retries).
- Â Automation and testing: Policy as code (Sentinel/OPA), Terraform testing (Terratest), Ansible molecule tests, pipeline testing and promotion gates, contract testing between services.
-  Architecture and platform: Design multi‑tenant IaC, GitOps workflows (Git as single source), scalable Jenkins/GitLab runners, Ansible for immutable infra vs. configuration drift strategies, microservices at scale (service mesh, API gateway, observability).
-  Reliability and security: Secrets management, secure module registries, CI/CD supply‑chain hardening, runtime configuration management, performance and failure‑mode design for distributed services.
-  Strategy and governance: Enterprise IaC governance, standard libraries and registries, platform engineering (developer self‑service), vendor and tool consolidation, organizational CI/CD strategy, cross‑team microservices contracts and SLAs.
-  Risk and cost: Policy enforcement, compliance automation, cost allocation for pipelines and services, long‑term architecture tradeoffs (monolith vs microservices), deprecation and migration planning.
- Cross‑cutting skills: Observability, automated testing, security (shift‑left), GitOps, reproducible environments, and mentoring/leadership for platform adoption.
- Hiring focus by level: Juniors — hands‑on labs (module, playbook, pipeline); mid — system design and automation exercises; senior/principal — architecture case studies, governance and migration strategy presentations.
