System Design - Chat Application.
Senior Software Interview Questions
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Regular Expression syntax questions.
Why i want to change
connection pooling ,thread pool ,n+1 problem in hibernate ,hiberate transaction handling with mutiple DB ,lazy loading xml tags in configuration files .how to lazy load in one to many mapping . oops principles (S.O.L.I.D) ,multithreading ,concurrenthashmap ,how it works internally . IOC ,DI ,prototype bean wiring in a singleton bean . sql queries .
1. What was the toughest project you worked on
Telephonic rounds about previous experience and SQL and database related questions. Onsite interview on Design
I was asked about if I prefer Lowe's or Home Depot
Last work experiences and tech stacks used
Design an Image sharing service.
System Design How would you model the db tables for rover chat where there is a sitter and an owner chatting back and forth? sometimes there is also a support agent that can step into the chat so you have to account for 3 people in the chat. Then after that, they ask you how you would support a huge load with x amount of messages per day, etc.
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