embedUR Systems Developer Interview Questions and Answers

Q1. Explain joins in SQL
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column between them

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• ...read more
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Q2. What are object and class in OOPs?
Ans. 
Objects are instances of classes in OOPs. Classes are blueprints for creating objects with attributes and methods.
• Objects are instances of classes

• Classes are blueprints for creating objects

• Classes define attributes and methods for objects

• Example: Class 'Car' with attributes like 'color' and methods like 'drive'
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What is javascripts, html and css

Its kind of Geometry question, they asked me to code
but i kind of forget basic like, in coding they asked me geometry and not able to think of solution so it went bad

Array duplicates and burn binary tree

Q1. Project specific
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Q1. Javascript Questions (Closure, hoisting, throttle, debounce)
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Q1. Asked about best practices in designing rest api
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Q2. About basics of backend (for ex: dependency injection)
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Q1. LLD of snakes & ladders
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Q1. Basically all about your personal skills
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Q2. Project level knowledge.
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Arrays and Pointers code

Q1. Project related questions
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Q2. Oops concept html css sql
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