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TCS Assistant System Engineer Trainee Interview Questions, Process, and Tips

Updated 5 Mar 2025

Top TCS Assistant System Engineer Trainee Interview Questions and Answers

  • Q1. #include int main() { int any = ' ' * 10; printf("%d", any); return 0; } What is the output?
  • Q2. Compute the nearest larger number by interchanging its digits updated.Given 2 numbers a and b find the smallest number greater than b by interchanging the digits of a and ...read more
  • Q3. Difference between Structure and Union in C programming language, What is OOPs and it’s features ?
View all 221 questions

TCS Assistant System Engineer Trainee Interview Experiences

373 interviews found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Sep 2023. There were 3 interview rounds.

Round 1 - Aptitude Test 

This includes general aptitude and reasoning

Round 2 - Coding Test 

Coding test of various difficulty levels

Round 3 - Technical 

(1 Question)

  • Q1. Basics of programming Recursion Loop Objective Oriented Programming
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

TCS NQT Round with Questions from Quants, VA, DILR

Round 3 - Technical 

(2 Questions)

  • Q1. Prepare as per skills mentioned in resume, Prepare core computer engineering basic questions and also OOP related concepts
  • Q2. What are four pillars of OOP? Explain with examples
  • Ans. 

    The four pillars of OOP are Abstraction, Encapsulation, Inheritance, and Polymorphism.

    • Abstraction: Hiding implementation details and showing only necessary information. Example: A car dashboard shows only necessary information like speed, fuel level, etc.

    • Encapsulation: Binding data and functions that manipulate the data together. Example: A class in OOP encapsulates data and functions that operate on that data.

    • Inherita...

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. Tell me about yourself? What are the tech stacks you know? And relates scenario based questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare core computer engineering concepts and get sound with your resu,e

Assistant System Engineer Trainee Interview Questions Asked at Other Companies

asked in TCS
Q1. #include int main() { int any = ' ' * 10; printf("%d", any); retu ... read more
asked in TCS
Q2. Compute the nearest larger number by interchanging its digits upd ... read more
asked in TCS
Q3. Difference between Structure and Union in C programming language, ... read more
asked in TCS
Q4. Write a program to find a number that is palindrome or not ?
asked in TCS
Q5. Basic print function of python and OOPS concept explanation
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Around 1 hr I guess for 60 questions

Round 2 - Technical 

(1 Question)

  • Q1. Explain how a diode works, write simple c program
  • Ans. 

    A diode is an electronic component that allows current to flow in one direction and blocks it in the opposite direction.

    • A diode has two terminals: an anode and a cathode.

    • When the voltage across the diode is positive, it conducts current.

    • When the voltage across the diode is negative, it blocks current.

    • Diodes are commonly used in rectifier circuits to convert AC to DC.

    • A simple C program to control a diode can be written

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

General apptatuide based on 10 th level mathematics, reasoning and some basic coding questions mcq

Round 3 - Technical 

(3 Questions)

  • Q1. Related to my project, Skills , salary expectation
  • Q2. What is the use of this project
  • Q3. What is pointer
  • Ans. 

    A pointer is a variable that stores the memory address of another variable.

    • Pointers are used to manipulate memory and perform dynamic memory allocation.

    • They are commonly used in programming languages like C and C++.

    • Example: int *ptr; // declares a pointer variable of type int

    • Example: ptr = # // assigns the address of num to ptr

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. About my family, salary expectation, job location, why tcs

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on the exam , try to add actual things which you have done or know in your resume, practice apptatuide

Skills evaluated in this interview

TCS interview questions for designations

 System Engineer Trainee

 (7)

 Assistant System Trainee

 (1)

 System Trainee

 (1)

 Assistant System Engineer

 (380)

 Associate System Engineer Trainee

 (3)

 System Assistant

 (1)

 Trainee System Administrator

 (1)

 System Analyst Trainee

 (1)

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Nov 2022. There were 6 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

1. Quant Section
2. Reasoning
3. Verbal
(Duration - 1 hr)

Round 3 - Aptitude Test 

1. Adavance Quant
2. Advance Reasoning
(Duration - 1 hr)

Round 4 - Coding Test 

1. Moderate Level Code
2. Advance Level Code
(Duration - 1 hr)

Round 5 - Technical 

(3 Questions)

  • Q1. TR is held almost a month after exam. Selected candidates gets a chance to sit for the interview. Main topics include DSA, Database, Networking and personal projects.
  • Q2. 1. Introduce yourself 2. Your preferred languages 3. What have you done in your project and what are the technologies you have used? 4. What is a binary tree? 5. What is hash table? 6. How many types of so...
  • Ans. 

    Interview questions for Assistant System Engineer Trainee

    • Introduced myself and mentioned preferred languages

    • Explained my project and the technologies used

    • Defined binary tree, hash table, sorting, linked list, dynamic arrays, tree, graph, and AVL tree

    • Described database models, NoSQL, ACID properties, and query optimization

    • Differentiated between primary key and foreign key, delete and truncate commands, and TCP and UDP p

  • Answered by AI
  • Q3. Do not memorize these questions only. Go hard for the whole topics.
Round 6 - HR 

(2 Questions)

  • Q1. If u qualify in TR, this round is held just after TR on the same day and via same link.
  • Q2. 1. Are you comfortable with relocation? 2. What will you do if you don't get a project of your choice? 3. Why do you want to join TCS? 4. What if another company provides you higher salary than TCS? 5. Why...
  • Ans. 

    Interview questions for Assistant System Engineer Trainee at TCS

    • Yes, I am comfortable with relocation.

    • If I don't get a project of my choice, I will still work hard and try to learn as much as possible from the project assigned to me.

    • I want to join TCS because it is a reputed company with a global presence and provides ample opportunities for growth and learning.

    • Salary is not the only factor for me. I value the learning...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for TCS Assistant System Engineer Trainee interview:
  • DSA
  • Database
  • Networking
  • Project
Interview preparation tips for other job seekers - If you are a fresher practice aptitude more than coding since for getting a job in TCS aptitude is more important than coding. Don't just rely on things taught by your college. Go hard for DSA. 60-70% of the questions were from DSA. It's quiet good if u can answer 70% of these questions. I myself was not able to answer all these questions. The more accurate your answers are the harder the questions get. If the level of questions increases every time then there's a high chance that TR is impressed with you. If u are not from CSE or IT background my suggestion is for them to start preparation at least 3 months prior examination.

Get interview-ready with Top TCS Interview Questions

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Oct 2023.

Round 1 - Technical 

(1 Question)

  • Q1. Asked easy questions. full of managerial questions
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - One-on-one 

(2 Questions)

  • Q1. Very technical and intelligent questioning
  • Q2. Whybwe do knurling in shafts etc.
  • Ans. 

    Knurling is done in shafts to provide a better grip for components like pulleys, gears, or knobs.

    • Improves grip for components like pulleys, gears, or knobs

    • Increases friction between shaft and component

    • Enhances aesthetics and provides a better feel for users

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn skills and be future ready
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Good one not easy not hard

Round 2 - Technical 

(1 Question)

  • Q1. Oops , c , nice easy

Interview Preparation Tips

Interview preparation tips for other job seekers - Oops
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
-

I applied via Campus Placement and was interviewed before Apr 2023. There were 2 interview rounds.

Round 1 - Aptitude Test 

It was a 2 hour test.All question were medium level. But the time was very less.

Round 2 - Technical 

(2 Questions)

  • Q1. Introduce yourself Oops concept List and tuple Polymorphism Array Inheritance
  • Q2. Polimorphism, encapsulation, abstraction, inheritance
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Selected Selected

I applied via Campus Placement

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Aptitude consists of Math, Logical reasoning and verbal ability

Round 3 - Coding Test 

Programming questions

Round 4 - Technical 

(2 Questions)

  • Q1. Technical interview on Projects and questions on programming languages
  • Q2. Explain collections
  • Ans. 

    Collections are data structures that store and manipulate groups of objects.

    • Collections provide a way to manage groups of related objects.

    • They can be used to store and manipulate data in various ways.

    • Examples of collections include arrays, lists, sets, and maps.

    • Collections can be used to improve the efficiency and readability of code.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well in programming languages

Skills evaluated in this interview

TCS Interview FAQs

How many rounds are there in TCS Assistant System Engineer Trainee interview?
TCS interview process usually has 2-3 rounds. The most common rounds in the TCS interview process are Technical, Aptitude Test and HR.
What are the top questions asked in TCS Assistant System Engineer Trainee interview?

Some of the top questions asked at the TCS Assistant System Engineer Trainee interview -

  1. Difference between Structure and Union in C programming language, What is OOPs ...read more
  2. Basic print function of python and OOPS concept explanat...read more
  3. Write a program to print addition of two numbers such that if no number is inpu...read more
How long is the TCS Assistant System Engineer Trainee interview process?

The duration of TCS Assistant System Engineer Trainee interview process can vary, but typically it takes about less than 2 weeks to complete.

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TCS Assistant System Engineer Trainee Interview Process

based on 238 interviews

6 Interview rounds

  • Aptitude Test Round
  • Technical Round - 1
  • Technical Round - 2
  • HR Round - 1
  • HR Round - 2
  • HR Round - 3
View more

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TCS Assistant System Engineer Trainee Salary
based on 5.6k salaries
₹2.8 L/yr - ₹4.8 L/yr
At par with the average Assistant System Engineer Trainee Salary in India
View more details

TCS Assistant System Engineer Trainee Reviews and Ratings

based on 702 reviews

3.8/5

Rating in categories

3.5

Skill development

3.8

Work-life balance

2.9

Salary

4.5

Job security

3.7

Company culture

2.9

Promotions

3.2

Work satisfaction

Explore 702 Reviews and Ratings
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