Lead Data Architect Interview Questions

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Very basic java questions: Singletone, synchronization, how garbage collection and memory allocation in jvm works internally, trade off between hashmap vs hashset, arraylist vs linkedlist, why arraylist copies data physically instead of creating memory pointers/reference like linkedlist etc., How hasmap works internally.
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Principal Architect

Interviewed at Sabre

3.6
Aug 21, 2017

Very basic java questions: Singletone, synchronization, how garbage collection and memory allocation in jvm works internally, trade off between hashmap vs hashset, arraylist vs linkedlist, why arraylist copies data physically instead of creating memory pointers/reference like linkedlist etc., How hasmap works internally.

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