Zepto Interview Questions, Process, and Tips

Asked 2 questions on JS.
1)Publish subscribe system
2) Make toastify component

Q1. Basic Resume based questions
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Q1. Why do you want to join Zepto?
Ans. 
I want to join Zepto because of its innovative products, strong company culture, and opportunities for growth.
• Innovative products - Zepto's cutting-edge technology and solutions excite me

• Strong company culture - I value working in a collaborative and supportive environment like Zepto's

• Opportunities for growth - I see potential for career advancement and skill development at Zepto
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Q1: leetcode medium q2 leetcode medium both array based

Q1. Design lld for Zepto system
Ans. 
Design the low level design for Zepto system
• Identify the components of the Zepto system such as user interface, database, backend services, etc.

• Define the interactions between the components and how data flows through the system

• Consider scalability, performance, and security aspects in the design

• Use appropriate design patterns and technologies to implement the system

• Include error handling and logging mechanisms in the
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Q2. Questions based on concurrency data security
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Q1. What parameter you will consider to select the location of mother hub?
Ans. 
Factors such as proximity to suppliers, transportation infrastructure, labor availability, and market demand are key parameters for selecting the location of a mother hub.
• Proximity to suppliers to reduce transportation costs and lead times

• Availability of transportation infrastructure for efficient distribution

• Access to a skilled labor force for operations at the hub

• Consideration of market demand and customer locations ...read more
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Q2. How can you optimise the operations between dark stores and mother hubs?
Ans. 
Optimise operations by streamlining communication, inventory management, and logistics between dark stores and mother hubs.
• Implement a robust inventory management system to track stock levels at both dark stores and mother hubs.

• Utilize technology such as RFID tags or barcode scanners to improve accuracy and efficiency in inventory tracking.

• Establish clear communication channels between dark stores and mother hubs to en...read more
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Q1. Design movie booking system
Ans. 
Design a movie booking system
• Create a database to store movie details, showtimes, and seat availability

• Develop a user interface for customers to browse movies, select showtimes, and book seats

• Implement a payment gateway for secure transactions

• Include features like seat selection, seat reservation timeout, and booking confirmation
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Q1. Design online book reader
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Q1. How do you write SQL query to get customers and which categories they did not purchase? How would you find potential new customers in those categories?
Ans. 
To get customers and categories they did not purchase, use SQL query with LEFT JOIN and WHERE NOT EXISTS. To find potential new customers, analyze categories with low sales.
• Use LEFT JOIN to combine customers and categories tables

• Use WHERE NOT EXISTS to filter out categories that customers did not purchase

• To find potential new customers, analyze categories with low sales and target marketing efforts towards them
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