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7-Day DevOps Interview Preparation Plan

Your saved questions plus a day-by-day plan. Add questions with Save to → 7-Day Job Prep on any question page.

Day-by-day plan

Day 1Linux and scripting
  • Revise permissions, processes, signals and systemd commands
  • Practise five troubleshooting scenarios: full disk, high CPU, OOM, SSH, port in use
  • Write two bash scripts from memory: disk alert and service check
  • Revise networking basics: DNS, TCP ports, curl and ss
Day 2Git and CI/CD
  • Practise merge, rebase, reset, revert, stash and reflog in a test repo
  • Write a declarative Jenkinsfile and a GitHub Actions workflow without looking
  • Revise deployment strategies and secrets handling in pipelines
  • Prepare one story about a pipeline you built or improved
Day 3Docker
  • Write a multi-stage Dockerfile and a Compose file with a database
  • Revise image layers, CMD versus ENTRYPOINT, volumes and networks
  • Debug a crashing container using logs, inspect and exec
  • List image security practices and size reduction steps
Day 4Kubernetes
  • Draw the cluster architecture and explain each component aloud
  • Write Deployment, Service, Ingress and ConfigMap YAML from memory
  • Revise CrashLoopBackOff, Pending, ImagePullBackOff and service debugging
  • Practise rollout, rollback and Helm commands on a local kind or minikube cluster
Day 5Terraform, Ansible and AWS
  • Revise Terraform workflow, state, locking, modules and import
  • Write a small Ansible playbook with a handler
  • Revise VPC design, IAM roles, security groups and NAT
  • Prepare answers on cost spikes, high availability and disaster recovery
Day 6Monitoring and SRE
  • Write PromQL for request rate, error ratio and p95 latency
  • Revise SLI, SLO, SLA, error budgets and golden signals
  • Practise an incident walkthrough from alert to post-mortem
  • Prepare a story about an outage or reliability improvement
Day 7Projects and mock interview
  • Polish your resume project: architecture diagram, tools and impact numbers
  • Do a timed mock interview covering one question from each topic
  • Prepare HR answers: why DevOps, mistakes, conflicts and on-call pressure
  • Review the 30 revision points and sleep early

Frequently asked questions

Can I prepare for a DevOps interview in 7 days?

Seven days is enough to revise and sharpen, not to learn from zero. Use the plan to cover each core topic once, practise questions daily and finish with a mock interview.

How do I add questions to the plan?

On any question page choose Save to → 7-Day Job Prep. Saved questions show up at the top of this page.

How many hours a day should I study?

Two to four focused hours a day works for most people: one hour of revision, one to two hours of questions, and the rest on projects or mock answers.