QASource Interview Questions and Answers

C programs and linked list related programs. In c mainly focus on strings and arrays

Q1. C concepts like storage classes, pointers and protocols like spi, i2c
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Q2. Explain about Extern What's the difference between static and extern
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Extern and static are storage classes in C programming language.
• Extern is used to declare a variable or function that is defined in another file.

• Static is used to declare a variable or function that is only accessible within the same file.

• Extern variables have global scope while static variables have local scope.

• Extern functions can be used in other files while static functions cannot be used outside the file they are ...read more
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2 coding questions were asked followed by an English test

Q1. I was asked to code for denomination of currency in JavaScript
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This code calculates the minimum number of currency notes/coins needed for a given amount using JavaScript.
• Define an array of currency denominations, e.g., [100, 50, 20, 10, 5, 1].

• Sort the denominations in descending order to start with the largest.

• Iterate through the denominations and subtract from the amount while counting notes/coins.

• Example: For amount 126, output would be 1x100, 1x20, 1x5, 1x1.
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Q2. JavaScript related questions like difference between double and triple equals to
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Q1. This round was with senior member who asked me questions related to SQL queries. I don't exactly remember the question but it was nested query
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Q2. I was asked questions related to the DBMS project and modifications that could be done in order to improve the model and performance
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Q1. Print Longest Increasing Subsequence
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40 Aptitude Questions, one English test, 2 Easy Programming questions

Coding Round one. A string question

A String Question - Intermediate

General math and domain related questions

Q1. Data structure and trick questions
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Algorithm and domain indept questions

Q1. Face to face interview with manager
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Q1. String manipulations
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Q2. Database design
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Leetcode Medium Type Questions

Q1. Design a Online System to book Salon Professionals like Urban Company.
Ans. 
Design an online system to book salon professionals like Urban Company.
• User registration and login system

• Search functionality to find salon professionals based on location, services offered, ratings, etc.

• Booking system with calendar availability and payment integration

• Review and rating system for users to provide feedback on salon professionals

• Notification system for booking confirmations, reminders, and updates
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1. max of sub-array
2.snake-to-camel