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System Design Intermediate Pro

The CAP Theorem

Consistency, Availability, and Partition Tolerance in distributed systems

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Understand why distributed systems can only guarantee two of Consistency, Availability, and Partition Tolerance — and how real-world databases (Cassandra, Zookeeper, DynamoDB, Postgres) navigate this fundamental constraint.

Practice questions (5)

  • CP vs AP in Practice

    Intermediate
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  • Eventual Consistency and Read-Your-Writes

    Intermediate
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  • Cassandra Consistency Levels

    Advanced
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  • ZooKeeper Use Case

    Advanced
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  • PACELC Trade-off

    Advanced
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