Interactive Practice
Q&A Challenges
Test your engineering judgment with scenario problems, technical code fill-ins, and architecture puzzles across four core topics and four execution modes.
Infrastructure & Deployment
Beginner → Advanced
Docker
How containers actually isolate processes — cgroups, namespaces, and UnionFS layers, not just 'it's lighter than a VM'.
45 questions total4 practice modes
Beginner → Advanced
Kubernetes
Declarative cluster state: how the control plane reconciles desired vs. actual, across pods, deployments, and services.
45 questions total4 practice modes
AI & Machine Learning
Beginner → Advanced
Gen AI
What an LLM actually does — next-token prediction, context windows, and why temperature is not creativity.
45 questions total4 practice modes
Beginner → Advanced
Agentic AI
Agents vs. plain LLM calls — the tool-use loop, planning state, and why retry logic determines production reliability.
45 questions total4 practice modes