Quesns related array, LL, recursion
Backend Developer Interview Questions
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Technical Interview - 3 phases: 1. Code review - refactoring a Java class and its methods 2. Algorithmic task - an easy one from Leetcode (it was in neetcode's roadmap) 3. System design - a basic system with DB and API endpoints
which data structures are used for bfs and dfs and why
what are mutex locks in os
Describe how to implement a viedo upload system (like youtube). We want to upload the video in 3 different qualities (360p, 720p,1080p) After the file is uploaded in 3 different qualities, we want to send an email with the metadata to the user (There is a lambda function we need to trigger) - How we trigger it? The system should be scalable.
Technical questions 45 mins, asking same question someone post above, the busiest ceo and the filtered list. Fundamental questions: difference between es6 import and require, what is the “new” keyword do in es6 class, what is the difference between var and const, let. Engineering process, tell her a project you did and what is the process in that project.
what does inner join do
It was personality test round with HR so just asked personality based questions
What Java, JVM, .class, bytecode other basic question
what is Collections, HahMap What is hashing? how to avoid collision while hashing. Write a simple hash function
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