TCS Interview Questions For 2023

TCS Interview Questions For 2023

TCS Interview Questions For 2023
TCS Interview Questions For 2023

About TCS company

Founded in 1968 by Tata Sons, TCS is headquartered in Mumbai, and is one of the top multinational information technology companies globally. It operates in a vast number of locations across 46 countries and was ranked 64th in the Forbes World’s Most Innovative Companies ranking in 2015. It is one of the largest Indian companies in terms of market capitalization. In 2021, TCS recorded a market capitalization of $ 200 billion, making it the first Indian company to do so. 

Many well-qualified candidates want to land a job at TCS because the latter provides a vast number of employee benefits, including health insurance, taking a sabbatical, and an environment for learning the right kind of skills while balancing their personal and professional lives. Here are the key stats about TCS: 

  • Generated revenue of more than $ 26 billion in 2022.
  • Raised a net income of $ 5 billion in 2022 and has an operating income of $ 6.8 billion as of 2022.
  • Employed more than 528,748 people as of Dec 2021.

TCS Recruitment Process

Written Exam

The time allotted for the written test is 60 minutes, and it consists of four sections – Quantitative Aptitude, Programming Language Efficiency, Coding Test, and E-mail Writing.

Technical Interview

Basic questions based on the resume, branch of specialization, and professional skills are asked, along with a few trickier ones. 

Managerial Interview

The TCS interview questions asked in this round depend on the interviewer and range from general technical and HR questions to puzzle questions to gauge your reaction.

HR Interview

It is the final round of the recruitment process. Apart from the usual HR interview questions like strengths and weaknesses, hobbies and background, etc. Questions on work experience and educational background can be expected. 

Academic Criteria

Eligible candidates need to have a minimum of 60% result throughout their degree with no backlog. A gap of two years in the career is permissible provided a valid explanation.

TCS Technical Interview Questions

  1. Define socket programming and mention the benefits and drawbacks of Java sockets. 
  2. Define IPsec and mention its components.
  3. What do you mean by subnet mask?
  4. Define NAT.
  5. What do you understand by piggybacking?
  6. What is database schema and its types?
  7. Differentiate clustered and non clustered indexes.
  8. What is round trip time?
  9. Define ping.
  10. List some points about SLIP?
  11. What do you understand about Ethernet?
  12. What do you mean by tunnel mode in networking?
  13. Write about the RSA algorithm in brief.
  14. What is cyclomatic complexity in a software program?
  15. Give an example of the time when you didn’t find a bug in black box testing but discovered it in white box testing.
  16. What is slice splicing in software testing? What are its two types?
  17. Differentiate between AWT and Swing in Java.
  18. Explain memory leak in C++. How can you avoid it?
  19. What do you understand by a command-line argument in C?
  20. What do you mean by concurrency control?
  21. What do you understand about SQL correlated subqueries?
  22. Define a checkpoint in a database management system, and when does it eventuate.
  23. What are the two integrity rules in a database management system?
  24. What exactly are macros? What are the benefits and drawbacks?
  25. Differentiate between the Java Development Kit (JDK), Java Runtime Environment (JRE), and Java Virtual Machine (JVM).
  26. What is the method to swap two numbers without using a third variable?
  27. Mention the code to reverse a given number using command line arguments.
  28. What is meant by cycle stealing?
  29. Mention the two concepts of swapping in the context of OS? How does swapping help in better memory management?
  30. What is the RR Scheduling Algorithm in OS?
  31. What are interrupts?
  32. Explain the functionality of the linked list.
  33. Mention the four basic principles of OOPS?
  34. What is inheritance?
  35. What is the method of inheriting the variable of one class to any other class?
  36. What is polymorphism?
  37. What are the different types of inheritance?
  38. Differentiate between classes and interface.
  39. What is the software development life cycle?
  40. Define the normalization of databases, joins, and keys.
  41. What are loops?
  42. Explain about Joins, Views, Normalization, and Triggers.
  43. List different advantages of DBMS.
  44. What is a Database Management System?
  45. What are the conditional statements?
  46. Differentiate between the foreign key and reference key?
  47. List the differences and similarities between C and C++?
  48. Mention the structural difference between bitmap and b-tree index?
  49. Differentiate between socket and session?
  50. What is an array?
  51. If you are given an array of 1s and 0s, how can you arrange the 1s and 0s together in a single array scan? Optimize the boundary conditions.
  52. Define data abstraction. What is their importance?
  53. Mention a function to swap two numbers without using a temporary variable.
  54. What is memory allocation in C/C++?
  55. Write the output of the program?
  56. Define virtual function and pure virtual function.
  57. What are WPF and WCF?

TCS Interview Preparation

Answering TCS interview questions confidently requires an intense and strategic prior preparation. The candidates are advised to learn as much as they can about the company to be able to respond suitably to the questions based on the company’s requirements. Researching the most expected TCS interview questions and the best answers to those will help answer the challenging questions tactfully. Apart from that, if the candidates need to undergo technical tests, some time should be spent learning these programs to a professional level.

Interview Preparation Tips

  1. Do your research on the company.
  2. Develop a practice of explaining your approach and viewpoint to the interviewer.
  3. Practice the best approach to answer the most expected TCS interview questions.
  4. Enroll for mock interviews to boost your confidence.


1. Does TCS NQT have coding questions?

Yes, TCS NQT has coding questions which you can attempt in any of the five languages given by TCS, including Java, Python, and Pearl.

2. Who is eligible for TCS NQT?

Full-time graduates in B.E., B. TECH., M.E, or M.TECH with 60% throughout academics, including 10th, 12th, UG, and PG courses, are eligible for TCS NQT. 

3. What is the salary for freshers in TCS?

According to AmbitionBox, the average salary for freshers in TCS range from ₹1.6 Lakhs to ₹3.6 Lakhs per year.

4. What kind of coding questions are asked in TCS?

The TCS coding section consists of problems on arrays, numbers, sortings, strings, and number systems.

5. What are the basic questions asked in a TCS interview?

Questions regarding your resume, skill set, and educational and family background are some of the basic questions asked in the TCS interview.

6. What is TCS ninja?

It is a job role offered by TCS to fresh recruits, who are mapped to a unit based on their TCS Xplore program performance.

7. How many rounds of interviews are there in TCS?

The TCS recruitment process consists of four rounds that candidates need to clear before moving to the final step.

8. Is the TCS interview tough for experienced?

TCS interview is not easy, but it is not tough to crack for the experienced candidates with the right and strategic preparation.

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