Sde Interview Questions

16,619 sde interview questions shared by candidates

what is an acid property in MySQL, primary key and composite key, oops concept, what is the difference between method overloading and method overriding, what is the difference between shallow copy and deep copy, what is the difference between interface and abstract class, what is the difference between abstract and encapsulation
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Software Development Engineer (SDE)

Interviewed at ConsultAdd

3.6
Jun 7, 2024

what is an acid property in MySQL, primary key and composite key, oops concept, what is the difference between method overloading and method overriding, what is the difference between shallow copy and deep copy, what is the difference between interface and abstract class, what is the difference between abstract and encapsulation

In the MERN Stack round, I was asked questions related to: * React Hooks and Custom Hooks * State Management and Redux * Performance Optimization Techniques in React In the DSA round, I was asked to solve: 1. Merge Intervals – a common interval-based problem (available on LeetCode) 2. Sort a 2D Matrix – also a standard LeetCode-style problem
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Software Development Engineer (SDE)

Interviewed at Valuefy Solutions

3.7
May 14, 2025

In the MERN Stack round, I was asked questions related to: * React Hooks and Custom Hooks * State Management and Redux * Performance Optimization Techniques in React In the DSA round, I was asked to solve: 1. Merge Intervals – a common interval-based problem (available on LeetCode) 2. Sort a 2D Matrix – also a standard LeetCode-style problem

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