Missing Terms Tracker

This file tracks terms that were referenced in cross-links but did not exist in the original curriculum, and have now been officially generated and added.

• The crypto Module (Level 2)
• The Call Stack (Level 1)
• The Thread Pool (libuv) (Level 1)
• CPU-bound vs I/O-bound (Level 1)
• Blocking the Event Loop (Level 1)
• async / await in Node (Level 5)
• Async Error Handling (try/catch + .catch) (Level 5)
• process.nextTick() vs setImmediate() (Level 5)
• Character Encoding & Buffer ↔ String (Level 6)
• Duplex & Transform Streams (Level 6)
• Backpressure (Level 6)
• Route Parameters & Query Strings (Level 7)
• The Middleware Chain & next() (Level 7)
• Body Parsing (express.json()) (Level 7)
• Serving Static Files (express.static) (Level 7)
• Mongoose (MongoDB ODM) (Level 8)
• Prisma / Sequelize (SQL ORMs) (Level 8)
• Database Transactions (Level 8)
• Parameterized Queries / Prepared Statements (Level 8)
• API Versioning (Level 9)
• MVC Pattern (Model–View–Controller) (Level 9)
• Controllers & Services (Level 9)
• Input Validation (joi / zod) (Level 9)
• Error Handling Middleware (Level 9)
• Child Processes (child_process) (Level 10)
• Worker Threads (Level 10)
• The cluster Module (Level 10)
• Load Balancing (Level 10)
• Reverse Proxy (Nginx) (Level 10)
• Graceful Shutdown & Process Signals (Level 10)
• Logging & Monitoring (Level 10)
• Memory Leaks & Garbage Collection (Level 10)