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2,399 fresher engineer interview questions shared by candidates

Q1: Tell me about yourself. Answer: I introduced myself with my education background, skills in C++, Java, and MERN stack, highlighted my projects like Accessibility Analyzer and Emotion-Based Playlist Generator, and mentioned my problem-solving achievements on LeetCode. Q2: What is the difference between C and C++? Answer: C is a procedural programming language, while C++ is both procedural and object-oriented. C++ supports classes, objects, inheritance, polymorphism, and encapsulation which are not present in C. Q3: What is DBMS and its advantages? Answer: DBMS is software that manages data in a structured way. It reduces redundancy, ensures data integrity, supports concurrent access, and provides backup and recovery features. Q4: What are joins in SQL? Answer: Joins are used to combine rows from two or more tables. Common types are INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. Q5: What is OOPS and explain its principles? Answer: OOPS (Object-Oriented Programming System) is based on four principles—Encapsulation, Abstraction, Inheritance, and Polymorphism—which make code modular, reusable, and maintainable. Q6: Why do you want to join TCS? Answer: TCS is one of the leading IT companies with global opportunities, strong training programs, and career growth. As a fresher, I want to start my career with a company that values learning and innovation. Q7: What was the one thing that they asked you? Answer: They asked me: “If you have programming knowledge in C++ and Java, why do you want to join a service-based company instead of a pure development company?” Answer: I explained that I want to start my career with a reputed company like TCS where I will get exposure to different domains, clients, and technologies. This will give me a strong foundation, and my programming skills will still be useful in automation, problem-solving, and project work.
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Assistant System Engineer (Fresher Role)

Interviewed at Tata Consultancy Services

3.5★
Sep 4, 2025

Q1: Tell me about yourself. Answer: I introduced myself with my education background, skills in C++, Java, and MERN stack, highlighted my projects like Accessibility Analyzer and Emotion-Based Playlist Generator, and mentioned my problem-solving achievements on LeetCode. Q2: What is the difference between C and C++? Answer: C is a procedural programming language, while C++ is both procedural and object-oriented. C++ supports classes, objects, inheritance, polymorphism, and encapsulation which are not present in C. Q3: What is DBMS and its advantages? Answer: DBMS is software that manages data in a structured way. It reduces redundancy, ensures data integrity, supports concurrent access, and provides backup and recovery features. Q4: What are joins in SQL? Answer: Joins are used to combine rows from two or more tables. Common types are INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. Q5: What is OOPS and explain its principles? Answer: OOPS (Object-Oriented Programming System) is based on four principles—Encapsulation, Abstraction, Inheritance, and Polymorphism—which make code modular, reusable, and maintainable. Q6: Why do you want to join TCS? Answer: TCS is one of the leading IT companies with global opportunities, strong training programs, and career growth. As a fresher, I want to start my career with a company that values learning and innovation. Q7: What was the one thing that they asked you? Answer: They asked me: “If you have programming knowledge in C++ and Java, why do you want to join a service-based company instead of a pure development company?” Answer: I explained that I want to start my career with a reputed company like TCS where I will get exposure to different domains, clients, and technologies. This will give me a strong foundation, and my programming skills will still be useful in automation, problem-solving, and project work.

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