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Practice Zone • NodeJS
6 Topics 20 Questions All Difficulty
Topics
All Questions Full list for NodeJS 120 Async & Event Loop Practice Async & Event Loop with real questions. 20 CLI Tools & Debugging Practice CLI Tools & Debugging with real questions. 20 File System & Paths Practice File System & Paths with real questions. 20 HTTP & APIs Practice HTTP & APIs with real questions. 20 Node Basics & Modules Practice Node Basics & Modules with real questions. 20 Streams & Buffers Practice Streams & Buffers with real questions. 20
Questions
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Read Text File
Medium
Jan 25, 2026
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Write File Safely
Hard
Jan 25, 2026
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Append Log Lines
Easy
Jan 25, 2026
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List Directory Files
Hard
Jan 25, 2026
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Path Normalize
Medium
Jan 25, 2026
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File Stats Size
Medium
Jan 25, 2026
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Copy File
Hard
Jan 25, 2026
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Delete File If Exists
Easy
Jan 25, 2026
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Read JSON Config
Medium
Jan 25, 2026
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Atomic Save Pattern
Hard
Jan 25, 2026
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fs.promises ReadFile
Medium
Jan 25, 2026
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Create File If Missing
Easy
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Rename File
Medium
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Watch File Changes
Hard
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Read Large File Line By Line
Hard
Jan 25, 2026
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Recursive Folder Size
Hard
Jan 25, 2026
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Temporary File Path
Easy
Jan 25, 2026
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Compare Two Files By Hash
Hard
Jan 25, 2026
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Resolve User Home Path
Easy
Jan 25, 2026
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Durable Write With fsync
Hard
Jan 25, 2026
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