Zepto Site Engineer Interview Questions and Answers

Q1. Asking for experience
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Q1. Question about ohe foundation
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Q1. What is your age
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Q2. What your CTC, what your name
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Q3. What your qualifications
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Q4. What your qualifications in mechanical
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Q1. Nothing and good
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Q1. Role of my job in previous company
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Q2. Fully described what I performed there.
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Q3. Client and sub contractor billing process
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Q4. Elaborate From end to end billing procedure. Re consolation of materials and analysis of vendor work order
Ans. 
The end-to-end billing procedure involves reconciliation of materials and analysis of vendor work orders.
• Gather all relevant information for billing, including materials used and vendor work orders.

• Verify the accuracy of the materials used and work performed against the vendor work orders.

• Calculate the total cost of materials and work performed for billing purposes.

• Generate an invoice based on the reconciled materials ...read more
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Q1. What is mixed design
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Mixed design is a research design that combines elements of both quantitative and qualitative research methods.
• Mixed design involves collecting and analyzing both numerical data and non-numerical data.

• It allows researchers to gain a more comprehensive understanding of a research topic by utilizing the strengths of both quantitative and qualitative approaches.

• Examples of mixed design studies include using surveys to col...read more
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Q2. What is Cube mould
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A cube mould is a device used in construction to create concrete cubes for testing the compressive strength of concrete.
• Cube moulds are typically made of steel or cast iron and come in various sizes.

• Concrete is poured into the cube mould and allowed to set before being tested for strength.

• The dimensions of the cube mould are standardized to ensure accurate testing results.

• Cube moulds are commonly used in construction p...read more
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Q3. What is M20 grade
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M20 grade is a mix of concrete with a compressive strength of 20 megapascals after 28 days.
• M20 grade concrete is commonly used for residential construction.

• It is a mix of 1:1.5:3 (cement:sand:aggregate).

• The compressive strength of M20 grade concrete is achieved after 28 days of curing.

• It is suitable for foundations, slabs, beams, columns, etc.
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Round duration - 60 Minutes
Round difficulty - Easy

Q1. 
0/1 Knapsack Problem Statement
A thief is planning to rob a store and can carry a maximum weight of 'W' in his knapsack. The store contains 'N' items where the ith item has a weight of 'wi' and a value of...read more
Ans. 
Yes, the 0/1 Knapsack problem can be solved using dynamic programming with a space complexity of not more than O(W).
• Use a 1D array to store the maximum value that can be stolen for each weight capacity from 0 to W.

• Iterate through each item and update the array based on whether including the item would increase the total value.

• The final value in the array at index W will be the maximum value that can be stolen.
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Q2. 
Find the Second Largest Element
Given an array or list of integers 'ARR', identify the second largest element in 'ARR'.
If a second largest element does not exist, return -1.
Example:
Input:
ARR = [2,...read more
Ans. 
Find the second largest element in an array of integers.
• Iterate through the array to find the largest and second largest elements.

• Handle cases where all elements are identical.

• Return -1 if a second largest element does not exist.
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Round duration - 60 Minutes
Round difficulty - Easy

System Design Round

Q1. Design a system for Twitter, discussing its architecture, key components, and scalability considerations.
Ans. 
Design a scalable system for Twitter with key components and architecture.
• Use microservices architecture for scalability and fault isolation.

• Key components include user service, tweet service, timeline service, and notification service.

• Use a distributed database like Cassandra for storing tweets and user data.

• Implement a message queue like Kafka for handling real-time updates and notifications.

• Use a caching layer like ...read more
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Round duration - 30 Minutes
Round difficulty - Easy

It is just a formality

Coding test has multiple choice questions based on basics of programming and 2 coding questions.

Q1. What are the details of Object-Oriented Programming (OOP) concepts?
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data and code to manipulate that data.
• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include classes, objects, inheritance, polymorphism, and encapsulation.

• Classes are blueprints for creating objects, defining their properties and behaviors.

• Inheritance allows new classes to be based on existing...read more
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Q2. DSA question to solve using any programming language ?
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Q3. Some concepts of web development and binary tree related questions
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Q1. What do you know about Digit insurance?
Ans. 
Digit Insurance is a technology-driven insurance company offering a range of general insurance products.
• Digit Insurance was founded in 2016 by Kamesh Goyal.

• It is known for its innovative and customer-centric approach to insurance.

• Digit offers various insurance products such as health insurance, motor insurance, travel insurance, and more.

• The company leverages technology to simplify the insurance process and provide a s
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Q2. Where do you see yourself after 5 years ?
Ans. 
In 5 years, I see myself as a senior software engineer leading a team of developers on innovative projects.
• Leading a team of developers on projects

• Continuing to learn and grow in my technical skills

• Contributing to the success and growth of the company

• Possibly pursuing further education or certifications

• Exploring opportunities for mentorship and leadership roles
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