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Library/Kiến trúc & Database/System Design
Easy#system-design

Phân biệt Vertical Scaling và Horizontal Scaling trong thiết kế hệ thống.

February 15, 2026

Quick summary

Vertical Scaling (Scale Up) adds resources to a single server, which is simple to implement but limited by physical hardware and prone to SPOF. Horizontal Scaling (Scale Out) adds more servers to the pool, enabling High Availability but requiring a more complex stateless architecture.

Sample answer:

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