TCS Assistant System Engineer Interview Questions and Answers

The TCS NQT test consisted of three sections: numerical, verbal, and logical aptitude, followed by an advanced aptitude section and two coding questions.

Q1. Introduce yourself.
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for technology. I have experience with programming languages like Java and Python.
• Recent graduate with a degree in Computer Science

• Passionate about technology

• Proficient in programming languages like Java and Python
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Q2. Features of JAVA
Ans. 
Java is a popular programming language known for its platform independence, object-oriented features, and robustness.
• Platform independence - Java code can run on any platform with Java Virtual Machine (JVM)

• Object-oriented - Java supports classes, objects, inheritance, and polymorphism

• Robust - Java has strong memory management, exception handling, and type checking

• Security - Java has built-in security features like sand...read more
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Q3. 4 pillars of OOPS
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Encapsulation, Inheritance, Polymorphism, Abstraction
• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Class with private data members and public methods.

• Inheritance: Ability of a class to inherit properties and behavior from another class. Example: Subclass inheriting from a superclass.

• Polymorphism: Ability to present the same interface for different data types. Example: Me...read more
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Q1. Are you willing to relocate
Ans. 
Yes, I am willing to relocate for the right opportunity.
• I am open to relocating for a promising career opportunity

• I have relocated for previous job positions and am comfortable with the process

• I understand the benefits of relocating for career growth and development
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Q2. Do you have any active backlogs
Ans. 
No active backlogs
• No, I do not have any active backlogs

• I have successfully completed all my courses without any pending assignments

• I am up to date with all my work and responsibilities
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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++
Ans. 
A friend function in C++ allows access to private and protected members of a class.
• Friend functions are not members of the class but can access its private and protected members.

• They are declared using the keyword 'friend' inside the class.

• Example: 'friend void display(ClassName obj);'

• Friend functions can be useful for operator overloading.

• They can also be used to implement certain functionalities that require access t...read more
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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...read more
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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. 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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The aptitude test will have logical reasoning, problem solving ,english and 2 coding questions to assess the candidate's knowledge

Q1. Rate yourself in python out of 10
Ans. 
I would rate myself a 7 out of 10 in Python, with solid skills in data manipulation and web development.
• Proficient in using libraries like Pandas for data analysis.

• Experience with Flask for building web applications.

• Familiar with object-oriented programming concepts.

• Able to write unit tests using the unittest framework.

• Comfortable with basic algorithms and data structures.
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Q2. Write a code to identify if the given word is palindrome or not
Ans. 
A palindrome is a word that reads the same backward as forward. This code checks if a given word is a palindrome.
• A palindrome example: 'radar' is the same forwards and backwards.

• To check, reverse the string and compare it to the original.

• In Python, use slicing: word == word[::-1] to check for palindrome.
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