Nagarro Interview Questions, Process, and Tips

General Appti questions

Q1. Prepare more of what you added in CV
Ans. 
I have experience in designing and implementing complex systems, with expertise in Java, Python, and cloud technologies.
• Designed and implemented a scalable microservices architecture using Java Spring Boot

• Developed data processing pipelines using Python and Apache Spark

• Deployed applications on AWS using services like EC2, S3, and Lambda
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Q1. JD related briefing and location and compensation related discussions
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Q1. Client interview after induction
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Aptitude test was to check english, reasoning and aptitude skills.

Q1. Questions were related to spark fundamental
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Q2. What are the spark job optimisation techniques
Ans. 
Spark job optimisation techniques include partitioning, caching, and tuning resource allocation.
• Partitioning data to distribute workload evenly

• Caching intermediate results to avoid recomputation

• Tuning resource allocation like memory and CPU cores

• Using broadcast variables for small lookup tables

• Avoiding shuffling operations whenever possible
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Q3. Programming questions (language as per choice), SQL questions
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Q1. Explain about you overall IT journey
Ans. 
I started my IT journey with a passion for technology and have gained experience in various roles and technologies over the years.
• Started learning basic programming languages like Java and C++ in college

• Interned at a software development company to gain practical experience

• Worked as a help desk technician to troubleshoot hardware and software issues

• Transitioned to a systems administrator role managing servers and netwo...read more
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Q2. Where do you see yourself in x no of years
Ans. 
In x no of years, I see myself as a Senior Staff Engineer leading a team of engineers and contributing to innovative projects.
• Continuing to develop my technical skills and expertise in engineering

• Taking on more leadership responsibilities and mentoring junior engineers

• Contributing to high-impact projects and driving innovation within the company
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Q1. Section A: All coding related multi-choice questions with expected output
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Q2. Section B: All logical reasoning and aptitude 20 questions
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Q1. What is Node.js event loop and how its work?
Ans. 
Node.js event loop is a mechanism that allows Node.js to perform non-blocking I/O operations asynchronously.
• Event loop is responsible for handling asynchronous operations in Node.js.

• It allows Node.js to perform multiple operations simultaneously without blocking the execution.

• Event loop continuously checks the event queue for new events and executes them in a non-blocking manner.

• Callbacks are used to handle the complet
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Q2. DBMS questions like joins
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- Basic data structures questions.
- Node.js specific questions.

Q1. Basic managerial questions
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Q1. Create a todo kind app using react, then optimize by adding custom hooks, optimize performance
Ans. 
Create a todo app using React, optimize with custom hooks for performance.
• Create a basic todo app using React

• Identify areas for optimization such as state management

• Implement custom hooks for optimized performance

• Use useMemo and useCallback hooks to optimize rendering

• Consider lazy loading components for better performance
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Q2. Create debounce function
Ans. 
Debounce function delays the execution of a function until after a specified amount of time has passed since the last time it was invoked.
• Use setTimeout to delay the execution of the function

• Use clearTimeout to reset the timer if the function is invoked again within the specified time period

• Commonly used in scenarios like search bars to prevent excessive API calls
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Q1. JEST and noSQL related questions
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Q2. Some detailed discussion on optimization and accessibility
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Mcq questions on project management and mathematics

Q1. Itil 4 definition , stages
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Q2. Problem management, service delivery models
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