Design versioned in-memory key-value store

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This is a medium difficulty System Design question, commonly asked during Onsite rounds at Meta.

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This question is commonly asked for Machine Learning Engineer candidates at Meta during technical interviews.

Question

Design versioned in-memory key-value store

PracHub · Accepted Answer

This question evaluates understanding of in-memory data structures, versioning semantics, rollback mechanisms, and performance trade-offs between time and space.

Design versioned in-memory key-value store

Quick Overview

Design versioned in-memory key-value store

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