Shell Recharge Solutions Softwaretest Engineer Interview Questions and Answers

Q1. SQL Questions - Constraints- how to optimize long SQL query without changing the output
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Q1. Sorting of an array
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Q2. Bubble sorting algorithm
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Q1. Java oops question
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Q1. API questions related to put and patch api
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Medium level leetcode question

Q1. Explain about your project
Ans. 
Developed a web application for managing inventory and sales for a retail store.
• Used React.js for front-end development

• Implemented RESTful APIs using Node.js and Express for back-end

• Utilized MongoDB for database management

• Incorporated authentication and authorization features for secure access
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Q2. Explain functionalities in detail
Ans. 
Functionalities in software development refer to the specific tasks or actions that a software program can perform.
• Functionalities are the specific features or capabilities of a software program.

• They define what the software can do and how it can be used.

• Examples of functionalities include user authentication, data encryption, and file management.

• Functionalities can be implemented through code modules or libraries.

• Test...read more
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Around 1 hour with 2 coding and few aptitude questions.

Q1. Regarding linked lists
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Q2. Data Structures
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Q1. Given few situations
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Q2. Asked about few other details
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Q1. How to identify if a queue is circular
Ans. 
A circular queue can be identified by checking if the rear pointer is one position behind the front pointer.
• Check if rear pointer is one position behind front pointer

• Check if front pointer is at index 0 and rear pointer is at index n-1 in an array of size n

• Check if front pointer is at index rear+1 modulo n in an array of size n
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Q1. Design notification system
Ans. 
Design a notification system for a software application.
• Identify the types of notifications needed (e.g. email, SMS, in-app)

• Consider the frequency and urgency of notifications

• Implement a notification queue to handle multiple notifications

• Include user preferences for notification settings

• Utilize push notifications for real-time updates
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Write multiple polyfills for array

Q1. Tell me about your self
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Q1. System design questions related to the product
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Q1. What is let, const and var?
Ans. 
let, const, and var are keywords used for variable declaration in JavaScript.
• let is block-scoped and can be reassigned.

• const is block-scoped but cannot be reassigned.

• var is function-scoped and can be reassigned.
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