HCL TechBee Software Developer Interview Questions and Answers

It was a coding round interview along with interviewer via Virtual mode. I was given 2 coding questions on HackerRank for the interview:

1. one was an easy problem on counting minimum replacements.
2. "pat is an ordinary kid who works hard to be a great runner...." this was a challenging problem (which I managed to solve).
3. I was asked some basic Python questions, as the role was for a Python Developer.

Q1. LLD for Parking Lot
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Q2. Which database are you going to use for Parking lot and Why ?
Ans. 
I would use a relational database like MySQL for the Parking lot as it provides structured data storage and supports complex queries.
• Relational databases like MySQL offer structured data storage for parking lot information

• Supports complex queries for managing parking lot data efficiently

• Ability to handle large amounts of data and transactions

• Provides data integrity and security features

• Can easily integrate with other s
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Q3. Questions related to OOPs
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Q4. Questions related to Multi Threading
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Q5. Questions related to Projects
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Q1. I hate this since i was informed that this round was a technical.
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Q2. Usual Mangerial questions, Project Related, etc
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Q1. Started with introduction
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Q2. Asked about projects
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Q3. Asked Architecture related questions and design pattern related questions
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Q4. If you have 1 million requests how will you manage that
Ans. 
I would use load balancing, caching, and scaling techniques to manage the 1 million requests.
• Implement load balancing to distribute requests evenly across multiple servers.

• Utilize caching to store frequently accessed data and reduce response times.

• Scale horizontally by adding more servers to handle the increased load.

• Optimize code and database queries to improve performance.

• Monitor system performance and make adjustmen
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Q5. React vs SAP UI5
Ans. 
React is a popular JavaScript library for building user interfaces, while SAP UI5 is a framework for developing enterprise-ready web applications.
• React is more flexible and widely used in the industry.

• SAP UI5 is specifically designed for SAP applications and has built-in support for SAP technologies.

• React has a larger community and ecosystem with more resources and libraries available.

• SAP UI5 provides a consistent user...read more
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Q6. Node VS JAVA
Ans. 
Node.js is a runtime environment for executing JavaScript code outside of a browser, while Java is a general-purpose programming language often used for building enterprise applications.
• Node.js is single-threaded and event-driven, making it ideal for handling asynchronous operations like I/O operations.

• Java is a statically typed language with a strong emphasis on object-oriented programming, making it suitable for larg...read more
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Q7. Multitenancy in sap btp
Ans. 
Multitenancy in SAP BTP allows multiple customers to share the same application instance while keeping their data isolated.
• Multitenancy allows multiple customers (tenants) to use the same application instance.

• Each tenant's data is isolated and secure from other tenants.

• Tenants can customize their own settings, branding, and configurations within the shared application.

• SAP BTP provides tools and features to manage multi...read more
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Arrays and strings - 90 mins

Create Modules, railway reservation system - 60 mins

Q1. Difference between hashmap and hasptable
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Q2. Why typescript over javascript
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Q3. Find the percentage of increace in the quantity of item after making it price 20% extra
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Q4. What is normalization
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Q5. Date and time api available
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Numerical aptitude test, logical reasoning test, and technical aptitude test.

Case study GD, topic based GD,Role_play GD

Q1. Can you tell me yourself ?
Ans. 
I am a software developer with 5 years of experience in Java, Python, and SQL.
• 5 years of experience in Java, Python, and SQL

• Strong problem-solving skills

• Experience working in Agile development environment

• Familiarity with version control systems like Git
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Q2. How did you hear about this role?
Ans. 
I found this role through a job posting on LinkedIn.
• Saw job posting on LinkedIn

• Applied through company website

• Referred by a friend who works at the company
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Q3. What are your long term career goals?
Ans. 
My long term career goal is to become a senior software architect and lead a team of developers to create innovative solutions.
• Work towards gaining expertise in various programming languages and technologies

• Take on leadership roles in projects to develop management and communication skills

• Attend industry conferences and workshops to stay updated on latest trends and advancements

• Seek opportunities for mentorship and pro
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Q4. Do you have any questions for me ?
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Q5. What do you know about our company?
Ans. 
Your company is a leading software development firm specializing in creating innovative solutions for various industries.
• Your company has a strong reputation for delivering high-quality software products.

• You have a diverse portfolio of clients from different industries.

• Your company values innovation and creativity in software development.

• Your team is known for its expertise in cutting-edge technologies like AI and bloc...read more
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Q1. What is your favourite programming language?
Ans. 
My favorite programming language is Python because of its simplicity, readability, and versatility.
• Python is known for its clean and readable syntax, making it easy to learn and understand.

• Python has a large standard library with built-in modules for various tasks, reducing the need for external libraries.

• Python is versatile and can be used for web development, data analysis, artificial intelligence, and more.
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Q2. Can you explain the concept of object oriented programming?
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• Objects are instances of classes, which define the structure and behavior of the objects.

• Encapsulation is the concept of bundling data and methods that operate on the data within a single unit, such as a class.

• Inheritance allows classes to inherit attribu...read more
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First round was Aptitude which was quite easy

Q1. Resume bases Question
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Q2. Question on OOPS
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Q1. Resume and scenario based question
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Q1. Introduce yourself
Ans. 
I am a software developer with 5 years of experience in Java and Python.
• Experienced in Java and Python programming languages

• Worked on developing web applications using Spring framework

• Familiar with Agile development methodologies
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Q2. What challenges do you faced during your project and how you approached them
Ans. 
I faced challenges with integrating third-party APIs and resolved them by thoroughly researching documentation and seeking help from colleagues.
• Integrating third-party APIs required understanding complex documentation

• Encountered issues with data formatting and authentication

• Collaborated with team members to troubleshoot and find solutions
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LeetCode , hard questions on dynamic programming, graphs, and more.

DSA, Cn, os, DBMS, ML

Q1. Is relocation a possibility for this position?
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Q2. Senior role is there
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Time value distance clock

Q1. Points arrays oparetor
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Q1. Tell me Your self
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Q2. Why should higher you
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