Kizen Principal Platform Performance Engineer interview questions

What happens when you delete a Pod in Kubernetes? Estimate table size given 4 fields that will have 1M rows. And then how do you accurately calculate table size? Consider row overhead bytes for id, bool, name, timestamp. How does declarative paritioning works in Postgres? What is MVCC in Postgres? What is pg_stat_activity. Explain effect of NULL on average calculation Inner JOIN vs LEFT JOIN; Process vs Thread; what is list comprehension in python? Name a few standard library functions in python; what happens when you execute www.yahoo,com? For SQL coding, they will provide a scenario with some git metadata tables filled with sample data. You have to write SQL to get result where commits changed at least 2 files, c++ files and a readme file.