Ocrolus East Senior Software Engineer Interview Questions and Answers

2 leetcode medium questions were asked

Q1. 1 feature design end to end
Ans. 
Designing a feature for a social media platform to allow users to create and share photo albums.
• Allow users to create and name albums

• Provide an interface for users to upload and organize photos within albums

• Implement privacy settings to control who can view and contribute to albums

• Include features like tagging, commenting, and liking photos within albums

• Enable users to share albums with others via links or social media
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Q1. Basic hr questions
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Q1. Design Zomato Ordering System
Ans. 
Design a Zomato Ordering System for online food delivery.
• Allow users to browse restaurants and menus

• Implement user authentication and profile management

• Enable users to place orders and make payments online

• Include features like order tracking and ratings/reviews

• Integrate with restaurant partners for order fulfillment
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2 hackerearth problem solving questions was asked.

Q1. 1. Trees related questions were asked.
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Q2. 2. Some java basic questions were asked
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Q1. Kinda cultural fitment round where manager use to ask what you’ll do in situation like that.
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Q1. Asked about expectations and all
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Q1. How event loop works?
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It was leetcode questions for 60 min for 2 questions.

Q1. Tell me about your self
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Q1. Tell me about your work experience
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MVVM was asked and swift questions

Q1. Resume based questions
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Q2. Event loop in nodejs
Ans. 
Event loop in Node.js manages asynchronous operations by executing callback functions when certain events occur.
• Event loop is responsible for handling I/O operations, timers, and callbacks in Node.js

• It allows Node.js to perform non-blocking operations efficiently

• Event loop continuously checks the event queue for new events to execute
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Q3. Javascript es6 questions
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Q1. Promises in javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
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