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Recently interviewed for Cloud Team

Round 1: Q1- Write code for Min Stack. Q2 - Matrix parsing using loops

Round2 : Given datasets, how would you programmatically groupby on columns to get average age.
LLD of job scheduler, just mention the classes including properties and methods, and then how can we scale it. Discussion around it.

Round 3: How would you compute the count of keyword given TB's of file. How would you optimize and then scale this solution.

Waiting for feedback from recruiter.