Velodyne Lidar Senior Software Engineer Interview Questions and Answers

Q1. Design Booking Management System
Ans. 
Design a Booking Management System for handling reservations and scheduling.
• Create a user-friendly interface for customers to make bookings

• Implement a database to store booking information

• Include features for managing availability, cancellations, and payments
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Q1. Coding and behavioral questions
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Q1. Node JS internal
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Q2. Previous project discussion
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Q1. Design hld interview asked question
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Q2. Design lld asked question
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Q1. Design Search Systems
Ans. 
Designing search systems involves creating efficient algorithms and data structures to quickly retrieve relevant information.
• Understand the data structure of the search system (e.g. inverted index, trie)

• Implement efficient search algorithms (e.g. binary search, hash tables)

• Consider scalability and performance optimization techniques (e.g. caching, indexing)

• Include user-friendly features like autocomplete and spell corr...read more
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It was a simple coding test.

There was a small coding problem involving oops concepts..

Q1. There was a simple System Design problem specifically URLShortener
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Q1. There was discussion about previous projects
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Q1. What are Microservices
Ans. 
Microservices are a software architecture pattern where applications are built as a collection of small, loosely coupled services.
• Microservices are independent and autonomous services that communicate with each other through APIs.

• Each microservice is responsible for a specific business capability and can be developed, deployed, and scaled independently.

• Microservices promote flexibility, scalability, and resilience in s...read more
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Q1. What are SOAP APIs
Ans. 
SOAP APIs are a protocol for exchanging structured information in web services using XML-based messages.
• SOAP stands for Simple Object Access Protocol

• It is a messaging protocol that allows programs running on different operating systems to communicate with each other

• SOAP APIs use XML to format the data being sent

• They are commonly used in enterprise-level applications for integrating different systems

• SOAP APIs provide a
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Q2. What are Rest APIs?
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REST APIs are a set of rules and protocols that allow different software applications to communicate and interact with each other over the internet.
• REST stands for Representational State Transfer

• REST APIs use HTTP methods like GET, POST, PUT, DELETE to perform operations on resources

• REST APIs are stateless, meaning each request from a client to a server contains all the necessary information

• REST APIs typically return d...read more
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Q1. Easy DSA questions on string manipulation
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Q1. Build an MVC architecture
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MVC architecture separates an application into Model, View, and Controller components for better organization and scalability.
• Model represents the data and business logic

• View displays the data to the user

• Controller handles user input and updates the model

• Example: Model - User class with properties like name, email; View - HTML template to display user info; Controller - User controller to handle user actions
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Q1. Discussed previous job experiences.
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Q2. Was asked if I am comfortable working on weekends/late nights during emergencies.
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Q1. What are your strengths/weaknesses.
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