TCS Interview Questions, Process, and Tips

Q1. Transformer related questions
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Q2. ACB,VCB related questions
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Q3. Electrical testing process
Ans. 
Electrical testing process involves checking the functionality and safety of electrical systems and equipment.
• Electrical testing is essential to ensure the proper functioning of electrical systems and equipment.

• Testing involves using specialized equipment to measure voltage, current, resistance, and continuity.

• Common tests include insulation resistance testing, earth continuity testing, and polarity testing.

• Regular tes...read more
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1. Aptitude
A) Verbal
B) Reasoning
C) Quants

2. Coding test
A) Arrays - Number of ways to reach a position after exactly K steps
B) Rotate Matrix

Q1. OOPS concepts inheritance, abstraction, polymorphism
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Q2. Fibonacci series code + Dry run
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Q3. Basic of OS
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Q4. Friend function C++
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Q5. Difference between Tuple and list in python
Ans. 
Tuple is immutable, ordered collection of elements while list is mutable, ordered collection of elements in Python.
• Tuple is created using parentheses () while list is created using square brackets []

• Tuple elements cannot be changed once assigned while list elements can be modified

• Tuple is faster than list for iteration and accessing elements

• Example: tuple_example = (1, 2, 3) and list_example = [1, 2, 3]
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Q6. Tell above Agile methodology & waterfall model
Ans. 
Agile methodology is iterative and flexible, while waterfall model is sequential and rigid.
• Agile focuses on delivering working software in short iterations

• Waterfall follows a linear sequential flow from requirements to testing

• Agile allows for changes and feedback throughout the development process

• Waterfall requires all requirements to be defined upfront

• Agile is more adaptive to changes in project scope

• Waterfall is less
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Q7. Difference between Agile and waterfall model
Ans. 
Agile is iterative and flexible, while waterfall is sequential and rigid.
• Agile involves continuous feedback and adaptation, while waterfall follows a linear approach.

• Agile is best suited for projects with changing requirements, while waterfall is better for projects with well-defined requirements.

• Agile promotes collaboration and communication among team members, while waterfall focuses on documentation and formal proce...read more
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Q8. Is their any drawbacks of Agile model
Ans. 
Yes, there are drawbacks of Agile model.
• Lack of predictability in terms of project timelines and deliverables

• Difficulty in handling large and complex projects

• Dependency on customer collaboration and feedback can sometimes slow down the process

• Requires experienced team members for effective implementation

• May lead to scope creep if not managed properly
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Q1. Why you want to work at TCS?
Ans. 
I want to work at TCS because of its reputation for innovation, global presence, and opportunities for growth.
• TCS is known for its cutting-edge technology solutions and innovation in the IT industry.

• TCS has a strong global presence with offices in multiple countries, providing opportunities for international exposure.

• TCS offers a wide range of projects and clients, allowing for professional growth and development.

• TCS h...read more
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Q2. What are your hobbies?
Ans. 
My hobbies include playing the guitar, hiking, and reading science fiction novels.
• Playing the guitar

• Hiking

• Reading science fiction novels
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Q3. How is your team project experience in college?
Ans. 
I have extensive team project experience in college, working on various assignments and presentations.
• Led a team of 5 students to develop a mobile application for a class project

• Collaborated with classmates to create a research paper on artificial intelligence

• Participated in a group presentation on cybersecurity for a final exam
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Q4. Are you a continuous learner or not?
Ans. 
Yes, I am a continuous learner who is always seeking to expand my knowledge and skills.
• I regularly attend workshops, seminars, and online courses to stay updated with the latest technologies and trends.

• I actively seek feedback from colleagues and supervisors to identify areas for improvement.

• I enjoy reading technical blogs and articles to enhance my understanding of complex concepts.

• I have pursued certifications in rel...read more
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Q5. Situation based questions about team management.
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Q6. What are your achievements till date?
Ans. 
I have successfully completed multiple projects on time and received recognition for my problem-solving skills.
• Received Employee of the Month award for implementing a new system that improved efficiency by 20%

• Led a team in developing a software solution that reduced errors by 15%

• Achieved a 98% customer satisfaction rate in handling technical support issues
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Q1. About basic linux Architecture
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Q2. About linux storage
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Q1. About my current project
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Q2. About shell scripting
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Q1. About myself and my work experience
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Q2. About relocation and shifts
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Q1. What are new features in java 11?
Ans. 
Java 11 introduced new features like local-variable syntax for lambda parameters, HTTP client API, and more.
• Local-variable syntax for lambda parameters allows var to be used in lambda expressions.

• HTTP client API provides a standard API for making HTTP requests and handling responses.

• Nest-based access control enhances the security and maintainability of Java code.

• Flight recorder API enables Java Flight Recorder to be us...read more
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Q2. Explain parameterised testing in juint?
Ans. 
Parameterised testing in JUnit allows running the same test with different inputs.
• Parameterised tests use @ParameterizedTest annotation in JUnit 5.

• Parameters are provided using @MethodSource or @CsvSource annotations.

• Each set of parameters is passed to the test method as arguments.

• Helps in testing multiple scenarios with a single test method.

• Example: @ParameterizedTest @ValueSource(ints = {1, 2, 3}) void test(int num)
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Q1. Introduction, project, my past internships
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Q2. Detailed questions about the internship and tech stacks I've used.
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Q1. Basic questions about certification and hobbies
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Q2. Asked for relocation and shifts
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Q1. Write a program to reverse your name
Ans. 
Program to reverse a given name
• Create a function that takes a string as input

• Convert the string into an array of characters

• Reverse the array of characters

• Join the reversed array back into a string and return
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Q1. Explain about your recent task or program you worked on and what difficulties you face and how did you over come
Ans. 
I recently worked on implementing a new network monitoring system for our company.
• Identified key requirements for the network monitoring system

• Researched and evaluated different monitoring tools available in the market

• Faced challenges in integrating the new system with existing infrastructure

• Collaborated with cross-functional teams to address compatibility issues

• Implemented a phased approach to deployment to minimize d
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Q1. Why are you looking for job change
Ans. 
Seeking new challenges and growth opportunities in a dynamic work environment.
• Looking for opportunities to expand my skill set

• Seeking a more challenging role

• Interested in working with new technologies

• Want to explore different industry sectors
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