TCS (Tata Consultancy Services) DevOps / SRE Interview Questions

6400+ verified questions, indexed by team and level. Real questions submitted by candidates who completed TCS (Tata Consultancy Services) loops in the last 24 months.

About the TCS (Tata Consultancy Services) DevOps / SRE hiring loop

TCS hires across three tracks — TCS NQT (₹3.36 LPA), TCS Ninja (₹3.36–4.5 LPA), and TCS Digital (₹9–11 LPA). Each track has different rubric weights, coding-language acceptance (C/C++/Java for Ninja; Python added for Digital), and HR-round expectations.

DevOps / SRE rounds score on infrastructure design, reliability engineering depth, automation fluency, and incident-response maturity. Production-experience signal (real outages handled) differentiates Senior from Mid.

Topics covered in TCS (Tata Consultancy Services) DevOps / SRE interviews

  • 01Infrastructure as Code (Terraform, Pulumi, CloudFormation)
  • 02Container orchestration (Kubernetes, Helm, ECS, multi-cluster)
  • 03CI/CD pipelines (GitHub Actions, GitLab, ArgoCD, blue-green, canary)
  • 04Observability (Prometheus, Grafana, OpenTelemetry, distributed tracing)
  • 05Incident response (postmortems, error budgets, on-call practices)
  • 06Cloud cost optimisation (right-sizing, reserved capacity, spot instances)

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