Infrastructure & Deployment

Docker Challenges

How containers actually isolate processes — cgroups, namespaces, and UnionFS layers, not just 'it's lighter than a VM'.

Select Difficulty Level

beginner15 questions

Core concepts and foundational mechanisms — tests command recognition and basic architecture vocabulary.

intermediate15 questions

Applied configuration and multi-component scenarios — tests real-world decision-making and troubleshooting.

advanced15 questions

Production-grade trade-off analysis, kernel/internal mechanisms, and failure-mode reasoning.