LambdaTest Software Developer Interview Questions and Answers

Low level Design Problem in Java

Q1. Data Structures - Graph Problem DFS
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System Design with few details

Q1. They asked to design a database table
Ans. 
Design a database table for managing user accounts in a web application.
• Table Name: Users

• Columns: id (INT, Primary Key), username (VARCHAR), password (VARCHAR), email (VARCHAR), created_at (TIMESTAMP)

• Indexes: Create an index on username for faster lookups.

• Constraints: Ensure email is unique and validate password strength.
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Q1. System design of a background process to fetch data and process them
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Q2. Code to find an element in a sorted 2d array
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Q1. Simple Array based Question and puzzels
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Q2. Array Based Question , puzzels and about nodejs internals
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Q1. What is ACID Prop?
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Q2. WHAT IS ER Dia?
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Aptitude Test with 1 coding question and 8 other aptitude questions

Q1. DSA questions with some dbms questions.
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Q1. DSA + SQL query writing questions. Do revise SQL before interview.
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Q1. LLD one question Parking lot system
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Q2. Queue related basic questions
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Q3. Basic .net core questions
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Q1. Data Structures & Algorithms
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Q2. Recursion, Dynamic Programming, C++ STL. Multithreading
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