> For the complete documentation index, see [llms.txt](https://liuzhenglaichn.gitbook.io/system-design/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://liuzhenglaichn.gitbook.io/system-design/advanced.md).

# Advanced

- [The Difference between SLI, SLO, and SLA](https://liuzhenglaichn.gitbook.io/system-design/advanced/the-difference-between-sli-slo-and-sla.md)
- [Consistent Hashing](https://liuzhenglaichn.gitbook.io/system-design/advanced/consistent-hashing.md)
- [Server-to-client Communication](https://liuzhenglaichn.gitbook.io/system-design/advanced/server-to-client-communication.md)
- [Data Sharding](https://liuzhenglaichn.gitbook.io/system-design/advanced/data-sharding.md)