Select a topic below to drill into specific interview questions. Each section includes theory, practical scenarios, and troubleshooting guides.
1. Docker & Containers
Images, Layers, Networking, and Multi-stage Builds.
2. Kubernetes (K8s)
Architecture, Pods, Services, Ingress, and Helm.
3. CI/CD & Automation
Pipelines, GitHub Actions, Jenkins, and IaC.
4. Terraform (IaC)
State management, Modules, Providers, and HCL best practices.
5. Ansible (Config Mgmt)
Playbooks, Roles, Inventory, and Idempotency.
6. Linux Internals
Kernel, Boot Process, File Systems, and Bash Scripting.
7. Networking
OSI Model, TCP/IP, DNS, Load Balancing, and VPNs.
8. Cloud Architecture
AWS/Azure services, High Availability, and Disaster Recovery.
9. Monitoring & SRE
Prometheus, Grafana, SLIs/SLOs, and Incident Response.
10. DevSecOps
Container Security, IAM, Secrets Management, and Compliance.