📝 My Notes — Chapter 4 Data Architecture
📘 Open Chapter 4 · ← Notes Hub
💡 Things that clicked
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❓ Things I still do not understand
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⚔️ Concepts I confuse
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🎯 Exam traps / deciding clues
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🧠 My own explanation
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🧪 Meridian/project connection
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❓ Questions I want to revisit
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🔁 Review later
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✅ Next action
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