SentinelOne Software Engineer interview questions

The hiring manager was a no show, twice! HR apologized, but the whole process was so unprofessional that I now refer clients to Cylance and Crowdstrike. Guess what, the biggest ride sharing company received my feedback and I am glad my friends picked Crowdstrike over them.

1) Implement a simple HashMap (no need to write code, just describe) 2) Add ability to persist the Map data in a file, while keeping the set(key, value) method at O(1). 3) How can I overcome corrupted data if writing to disk is interrupted. (allowing only 1 write operation per call set() )