ZestMoney Software Development Engineer Interview Questions and Answers

Q1. Reverse a string
Ans. 
Reverse a string by iterating through the characters and swapping them
• Create a function that takes a string as input

• Initialize two pointers, one at the beginning and one at the end of the string

• Swap the characters at the two pointers and move them towards the center until they meet
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Q2. 2 sum arrays problem
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Q1. Project discussions
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Q2. Cv discussion was held
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MVVM was asked and swift questions

The aptitude round consists of approx 20 q's, out of which half the q's were based on LR and aptitude and half based on computer fundamentals.

The coding test consisted of 4 q's. The selection criteria was to complete at least 3 q's.

Q1. Tell me something about yourself
Ans. 
I am a passionate software engineer with experience in developing web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and project management tools like Jira
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Q2. Questions on React.js, as i had build projects using react.js.
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Q1. DHCP and DNS difference
Ans. 
DHCP assigns IP addresses to devices on a network, while DNS resolves domain names to IP addresses.
• DHCP dynamically assigns IP addresses to devices on a network

• DNS resolves domain names to IP addresses

• DHCP is used for automatic IP address configuration

• DNS is used for translating domain names to IP addresses

• DHCP operates at the network layer (Layer 3)

• DNS operates at the application layer (Layer 7)
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Q2. Networking protocols and respective port numbers.
Ans. 
Networking protocols and their respective port numbers are essential for communication between devices.
• HTTP - Port 80

• HTTPS - Port 443

• FTP - Port 21

• SMTP - Port 25

• SSH - Port 22

• DNS - Port 53
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Q1. Current and expected Salary
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Q2. Reason for leaving the current company.
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Coding simple problem

Q1. Prepare for normal system design questions and you are good to go
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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 Codes on Hackerrank

Q1. Questions on Tree
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Q2. Questions on Java
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Q1. Hiring Manager Round
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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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