Learn
Pick a topic
Each topic holds everything for that subject in one place — concept cards, course chapters, and interview questions. No hunting across sections.
Free and open — no account needed. Your scores and streaks save in this browser.
AWS
Networking, IAM, storage, resiliency and cost — the cloud foundation everything else sits on.
38 cards · 43 interview Qs
Open topic
Terraform
Provision and manage infrastructure as code, end to end.
7 chapters · 40 interview Qs
Open topic
CI/CD
Jenkins, GitLab CI, GitHub Actions and the deployment strategies that ship safely.
5 cards · 40 interview Qs
Open topic
Kubernetes
Scheduling, security, networking and troubleshooting — through to CKA readiness.
54 cards · 80 interview Qs
Open topic
Helm
Package, template and release Kubernetes applications like a platform team.
1 chapter · 40 interview Qs
Open topic
DevOps
Linux, Git, GitOps, containers, observability and DevSecOps.
42 cards · 40 interview Qs
Open topic
SRE
Incident management, SLOs and error budgets, chaos engineering, PromQL.
5 cards
Open topic
Architecture
Production scenarios and the trade-offs senior interviews actually probe.
7 cards · 33 interview Qs
Open topic
AI
Context engineering, prompts, RAG, MCP, agents, guardrails and production AI operations.
8 cards · 40 interview Qs
Open topic