Deshaw

In total there were 2 interview rounds + 1 HR round. They asked me to provide a self introduction first, then started asking me about my projects. They asked why had i used MongoDB as the database, few qns around that, like what are ACID properties, how is ACID enforced in MongoDB. They asked how does TLS handshake work, what is symmetric and asymmetric key encryption. Then they asked a DSA question, standard finding the length of LIS in a array, both the N^2 and NLogN approach were required. Then they proceeded to ask few OS questions, what are processes, threads, what is threadpool, how are threads created, what memory aspects do they share. I was rejected after the 1st interview round.