Hello Everyone,
I want to know what are the best resources for preparing for system design interview questions. I have an on-site Facebook interview coming and they said it involves a system design round. I have research experience working with flash-based storage, GPU micro-architecture, etc. After doing a google search I found these material

[1] https://www.educative.io/collection/5668639101419520/5649050225344512
[2] https://github.com/donnemartin/system-design-primer#index-of-system-design-topics

Any sugesstions on which ones to follow? Is buying the Grokking the System Design Interview (link 1), worth it?

Thanks!