DevOps and cloud practice
Every DevOps and cloud exercise, built from a topic you can open beside it.
15 exercises runs offline
All tracks Python 139 JavaScript 184 TypeScript 76 Go 106 Rust 75 Java 81 Kotlin 66 C++ 92 C# 88 Swift 68 PHP 69 Frontend 82 Backend 139 Architecture and system design 25 DevOps and cloud 15 Data and databases 5 Data science 31 AI and LLM engineering 75 Security 26 Game development 26 Coding in the AI era 101 CS foundations 164
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ops Quiz new Which statement correctly distinguishes containerUser from remoteUser? Put toolchains, users, ports, lifecycle commands, and services in a Dev Container definition without mistaking it for a security sandbox. ops Quiz new What does waitFor default to when it is omitted? Put toolchains, users, ports, lifecycle commands, and services in a Dev Container definition without mistaking it for a security sandbox. ops Predict the output new On first creation, in what order do these three container-side commands run? Put toolchains, users, ports, lifecycle commands, and services in a Dev Container definition without mistaking it for a security sandbox. ops Review AI code new Review generated Node workspace Put toolchains, users, ports, lifecycle commands, and services in a Dev Container definition without mistaking it for a security sandbox. ops Spot the bug new Spot the bug in the Dev Container config Put toolchains, users, ports, lifecycle commands, and services in a Dev Container definition without mistaking it for a security sandbox. ops Quiz new Which statement correctly distinguishes an image from a container? Understand images, containers, build caching, networks, and storage, then package a Node service as a reproducible, reviewable Docker workload. ops Quiz new Which choice preserves database data when its container is replaced? Understand images, containers, build caching, networks, and storage, then package a Node service as a reproducible, reviewable Docker workload. ops Predict the output new What does this image-reference inspection print? Understand images, containers, build caching, networks, and storage, then package a Node service as a reproducible, reviewable Docker workload. ops Review AI code new Review generated Node image Understand images, containers, build caching, networks, and storage, then package a Node service as a reproducible, reviewable Docker workload. ops Spot the bug new Spot the bug in the Compose file Understand images, containers, build caching, networks, and storage, then package a Node service as a reproducible, reviewable Docker workload. ops Quiz new A Wasm layer changes by one byte after its OCI manifest is created. What must the publish… WebAssembly containers deliver Wasm modules as OCI artifacts; learn the boundaries among WASI capabilities, containerd shims, and RuntimeClass. ops Predict the output new What does Node 24 print for this minimal core Wasm module? WebAssembly containers deliver Wasm modules as OCI artifacts; learn the boundaries among WASI capabilities, containerd shims, and RuntimeClass. ops Review AI code new Review generated Wasm Pod WebAssembly containers deliver Wasm modules as OCI artifacts; learn the boundaries among WASI capabilities, containerd shims, and RuntimeClass. ops Spot the bug new Spot the bug in the Wasm manifest WebAssembly containers deliver Wasm modules as OCI artifacts; learn the boundaries among WASI capabilities, containerd shims, and RuntimeClass. ops Quiz new Which statement correctly describes a WASI import and its authority? WebAssembly containers deliver Wasm modules as OCI artifacts; learn the boundaries among WASI capabilities, containerd shims, and RuntimeClass.
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