# Key Concepts

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[Scalability](/notebook/system-design/key-concepts/scalability.md)
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[Latency Vs Throughput](/notebook/system-design/key-concepts/latency-vs-throughput.md)
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[CAP Theorem](/notebook/system-design/key-concepts/cap-theorem.md)
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[ACID Transactions](/notebook/system-design/key-concepts/acid-transactions.md)
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[Rate limiting](/notebook/system-design/key-concepts/rate-limiting.md)
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[API Design](/notebook/system-design/key-concepts/api-design.md)
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[Strong Vs eventual consistency](/notebook/system-design/key-concepts/strong-vs-eventual-consistency.md)
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[Distributed tracing](/notebook/system-design/key-concepts/distributed-tracing.md)
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[Synchronous Vs asynchronous Communication](/notebook/system-design/key-concepts/synchronous-vs-asynchronous-communication.md)
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[Batch Processing Vs Stream Processing](/notebook/system-design/key-concepts/batch-processing-vs-stream-processing.md)
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[Fault Tolerance](/notebook/system-design/key-concepts/fault-tolerance.md)
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