Trenser Technology Solutions Private Limited Senior Software Engineer Interview Questions and Answers

Q1. Types of filters
Ans. 
Types of filters include low-pass, high-pass, band-pass, and band-stop filters.
• Low-pass filter allows frequencies below a certain cutoff frequency to pass through.

• High-pass filter allows frequencies above a certain cutoff frequency to pass through.

• Band-pass filter allows a specific range of frequencies to pass through.

• Band-stop filter blocks a specific range of frequencies from passing through.
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Q1. Project Details
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Q1. Frontend basic HTML, CSS, Javascript, Angular technical questions
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Q1. Frontend advance HTML, CSS, Javascript, Angular technical questions
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Q1. Regarding Expected CTC
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Hackerearth platform was provided , Question was based on Tree dsa. Need to run and pass few test cases.

Design patterns , chess LLD

Design blocking queue which can handle the multithreading scenario

Q1. Last project experiences
Ans. 
Developed a web application for tracking inventory and sales data
• Used React for front-end development

• Implemented RESTful APIs using Node.js and Express

• Utilized MongoDB for database management
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Q2. And management cases.
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Q3. Discussion about recent projects
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Q4. Discussion about working in projects for which hiring for
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Q5. Discussion about why leaving previous company.
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Q1. There was simple DSA question ,
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It includes questions from aptitude as well as coding related questions, JAVA was the most common language in which majority of the coding questions were

Q1. Questions related to the skills mentioned under Resume
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Q2. One DSA question is must, like Pallyndrome
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Q1. Questions regarding your project
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Q2. Questions regarding your internship experience and if any difficulties faced during internship
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Q1. Design LLD for Parking Lot
Ans. 
Design LLD for Parking Lot
• Create classes for ParkingLot, ParkingSpot, Vehicle, etc.

• Implement methods for parking, unparking, checking availability, etc.

• Consider different types of vehicles and parking spots (e.g. regular, handicapped, electric)

• Include features like ticketing system, payment processing, and security measures
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The problem statement was given to solve.

Q1. Explain liskov substitution principle with examples?
Ans. 
Liskov Substitution Principle states that objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness.
• Subtypes must be substitutable for their base types.

• Derived classes should be able to extend the functionality of base classes without changing their behavior.

• Violating this principle can lead to unexpected behavior in the program.

• Example: If a Square class i...read more
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Q2. Importance of abstraction
Ans. 
Abstraction is crucial in software development to simplify complexity, improve readability, and promote reusability.
• Abstraction helps in hiding unnecessary details and focusing on essential features.

• It allows developers to work at a higher level of understanding without getting bogged down in implementation details.

• Abstraction promotes code reusability by creating modular and reusable components.

• It improves code readab...read more
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Q3. Importance of Unit testing in clean close
Ans. 
Unit testing is crucial in ensuring clean code by verifying the functionality of individual units of code.
• Unit testing helps in identifying bugs and errors early in the development process.

• It ensures that each unit of code works as expected in isolation.

• Unit tests act as documentation for the codebase, making it easier for new developers to understand and modify the code.

• It promotes code reusability and maintainability...read more
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Dsa problems dp and tress problem

Q1. Tell me about your self
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Q2. Projects and intership
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