TCS iON Senior Consultant Interview Questions and Answers

Q1. Role based discussion
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Q1. Role and resume based discussion
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General aptitude & domain quiz

Analytics case study & ppt submission

Q1. Technical interview & presentation
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Peer-coding test based on the provided tech-stack

Q1. Current project overview & it's architecture
Ans. 
Current project involves developing a cloud-based CRM system for a multinational corporation.
• Utilizing microservices architecture for scalability and flexibility

• Implementing RESTful APIs for seamless integration with other systems

• Leveraging cloud services like AWS for hosting and data storage

• Using Docker containers for easy deployment and management
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Q2. System design questions & LLD
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Palindrome,os internals,boot process,debugging

Q1. Reverse string/reverse linked list/fork
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Q1. What is BADi? and what is BAPI?
Ans. 
BADi is a Business Add-In that allows customizations to SAP applications. BAPI is a Business Application Programming Interface for SAP.
• BADi is used to enhance the functionality of SAP applications without modifying the source code.

• BAPI is used to integrate SAP applications with other systems.

• BADi is implemented using ABAP code.

• BAPI is a set of standard interfaces for accessing SAP business objects.

• Examples of BADi incl...read more
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Q2. What are the types of enhancements?
Ans. 
Enhancements can be categorized into three types: functional, technical, and performance.
• Functional enhancements improve the functionality of the system.

• Technical enhancements improve the technical aspects of the system.

• Performance enhancements improve the performance of the system.

• Examples of functional enhancements include adding new features or improving existing ones.

• Examples of technical enhancements include upgra...read more
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Q1. Best coding practises
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Best coding practices involve writing clean, efficient, and maintainable code.
• Use meaningful variable and function names

• Follow consistent coding style and formatting

• Write comments to explain complex logic

• Avoid duplicate code by using functions and classes

• Test code thoroughly before deployment
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Q2. What is TDD and writing of testcases
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TDD stands for Test-Driven Development, which involves writing test cases before writing the actual code.
• TDD is a software development process where tests are written before the code implementation.

• Test cases are written based on the expected behavior of the code.

• Developers write just enough code to pass the tests, ensuring code quality and functionality.

• TDD helps in identifying bugs early in the development process.

• Ex...read more
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Q1. Deep understanding on your project
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Q2. Why did you choose this way or this techstack and so on
Ans. 
I chose this tech stack because of its scalability, performance, and community support.
• Chose tech stack based on scalability needs

• Selected for performance optimization

• Considered community support for troubleshooting and updates
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Q1. Questions related to the resume or past work experience Learnings from the IT industry so far How to create IT solutions for a case specific question that he gave About the energy industry transition from ...read more
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Q1. It was more informal in nature. Introduction, asked about family members, discussed my future goals and aspirations, any questions that I had and I got to know about the kind of work and projects Infosys ...read more
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