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TCS iON Interview Questions, Process, and Tips

Updated 27 Feb 2025

Top TCS iON Interview Questions and Answers

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TCS iON Interview Experiences

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366 interviews found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in Jun 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Coding plus aptitude

Round 2 - Technical 

(2 Questions)

  • Q1. Project related
  • Q2. Questions from the subjects mentioned in CV

Top TCS iON System Engineer Interview Questions and Answers

Q1. gcdYou are given two numbers, ‘X’ and ‘Y’. Your task is to find the greatest common divisor of the given two numbers. The Greatest Common Divisor of any two integers is the largest number that divides both integers. For Example: You are giv... read more
View answer (3)

System Engineer Interview Questions asked at other Companies

Q1. Who Won the Election???Elections are going on, and there are two candidates A and B, contesting with each other. There is a queue of voters and in this queue, some of them are supporters of A and some of them are supporters of B. Many of th... read more
View answer (12)
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Technical 

(3 Questions)

  • Q1. What are pointers . Write a short program to explain concept of pointers
  • Ans. 

    Pointers are variables that store memory addresses of other variables.

    • Pointers are used to access and manipulate memory addresses directly.

    • They are denoted by an asterisk (*) before the variable name.

    • Example: int *ptr; // declares a pointer to an integer variable

  • Answered by AI
  • Q2. What is osi model
  • Ans. 

    The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.

    • The OSI model stands for Open Systems Interconnection model.

    • It helps in understanding how different networking protocols work together.

    • Each layer has specific functions and communicates with the adjacent layers.

    • Examples of layers include physical layer, data link layer, network

  • Answered by AI
  • Q3. What is encapsulation
  • Ans. 

    Encapsulation is the concept of bundling data and methods that operate on that data into a single unit, known as a class.

    • Encapsulation helps in hiding the internal state of an object and restricting access to it.

    • It allows for data hiding, which prevents direct access to the internal state of an object.

    • Access to the data is typically provided through public methods (getters and setters) defined in the class.

    • Encapsulatio...

  • Answered by AI

Skills evaluated in this interview

Top TCS iON Assistant System Engineer Trainee Interview Questions and Answers

Q1. What is Encapsulation?
View answer (2)

Assistant System Engineer Trainee Interview Questions asked at other Companies

Q1. #include int main() { int any = ' ' * 10; printf("%d", any); return 0; } What is the output?
View answer (2)
Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Tell us about your previous project
  • Q2. Controller specification of previous projects
  • Ans. 

    Designed and implemented controllers for various projects using MVC architecture

    • Utilized MVC design pattern to separate concerns and improve code maintainability

    • Implemented controller logic to handle user input and interact with models and views

    • Ensured controllers were properly tested and integrated with the rest of the application

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - They ask us about CTC from the beginning and then reject in the HR round after all the documents are uploaded saying the CTC asked is too high for their budget and the HR doesn’t even bother calling back after saying the offer letter will he released

Top TCS iON Software Developer Interview Questions and Answers

Q1. Minimum Sum in Matrix Problem Statement You are given a 2D matrix 'ARR' of size 'N x 3' with integers, where 'N' is the number of rows. Your task is to compute the smallest sum achievable by selecting one element from each row, following ce... read more
Add answer

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray Sum Problem Statement Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array. Example: Input: array = [34, -50, 42, 14, -5, 86] Output: 137 Explanation: The maximum sum is... read more
View answer (38)

System Engineer Interview Questions & Answers

user image Santha Saravanan

posted on 25 Jul 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. How to create user account in active directory
  • Ans. 

    User accounts in Active Directory can be created using Active Directory Users and Computers tool or PowerShell commands.

    • Open Active Directory Users and Computers tool

    • Navigate to the desired organizational unit (OU)

    • Right-click on the OU and select 'New' -> 'User'

    • Fill in the required user details such as username, password, etc.

    • Alternatively, use PowerShell commands like New-ADUser to create user accounts

  • Answered by AI
  • Q2. How to install network printer in windows
  • Ans. 

    To install a network printer in Windows, you need to add a printer using the 'Devices and Printers' option in Control Panel.

    • Go to Control Panel and select 'Devices and Printers'.

    • Click on 'Add a printer'.

    • Choose 'Add a network, wireless or Bluetooth printer'.

    • Select the network printer from the list or enter the printer's IP address.

    • Follow the on-screen instructions to complete the installation.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - J

Skills evaluated in this interview

Top TCS iON System Engineer Interview Questions and Answers

Q1. GCD (Greatest Common Divisor) Problem Statement You are given two numbers, X and Y. Your task is to determine the greatest common divisor of these two numbers. The Greatest Common Divisor (GCD) of two integers is the largest positive intege... read more
Add answer

System Engineer Interview Questions asked at other Companies

Q1. Election Winner Determination In an ongoing election between two candidates A and B, there is a queue of voters that includes supporters of A, supporters of B, and neutral voters. Neutral voters have the power to swing the election results ... read more
View answer (8)

TCS iON interview questions for popular designations

 Software Developer

 (36)

 System Engineer

 (25)

 Software Engineer

 (19)

 Java Developer

 (12)

 Assistant System Engineer

 (10)

 Assistant System Engineer Trainee

 (10)

 Business Analyst

 (9)

 Softwaretest Engineer

 (8)

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Around 10-20 question on reasoning, logical and few mathematics

Round 2 - Technical 

(2 Questions)

  • Q1. What is data redundency
  • Ans. 

    Data redundancy refers to the unnecessary duplication of data in a database or system.

    • Data redundancy increases storage space and can lead to inconsistencies in data.

    • It can occur when the same data is stored in multiple locations.

    • Examples include storing a customer's address in both a customer table and an order table.

  • Answered by AI
  • Q2. What is difference between delete, trucate and drop
  • Ans. 

    Delete removes specific rows from a table, truncate removes all rows from a table, and drop removes the entire table.

    • Delete is a DML command that removes specific rows from a table based on a condition.

    • Truncate is a DDL command that removes all rows from a table but keeps the table structure.

    • Drop is a DDL command that removes the entire table along with its structure.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare well, learn all the topics throughtly and clearly

Skills evaluated in this interview

Graduate Engineer Trainee (Get) Interview Questions asked at other Companies

Q1. Q: 1 What is IC engine? What is the types of IC engine? Q:2 Difference between Otto cycle and Diesel cycle? What is the process of both cycle and what is the effeciency of both cycle ? Which one is good in effeciency? Q:3 Difference between... read more
View answer (2)

Get interview-ready with Top TCS iON Interview Questions

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Correlation parameters

Performance Test Engineer Interview Questions asked at other Companies

Q1. List some scenarios where you observe issues with the heap dump and provide recommendations to the dev team. Follow-up questions will be asked based on your answer to the previous questions.
View answer (1)

QA Engineer Interview Questions & Answers

user image Anonymous

posted on 14 Dec 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
Not Selected
Round 1 - Coding Test 

C programing java automation

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn everything that you are aware of

QA Engineer Interview Questions asked at other Companies

Q1. 80 pairs of socks in a dark room, 40 black, 40 white, how many minimum number of socks need to be taken out to get 15 pairs of socks
View answer (7)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected
Round 1 - Group Discussion 

Basic knowledge of Drupal

Round 2 - Technical 

(3 Questions)

  • Q1. In depth knowledge of Drupal, with managerial prospective
  • Q2. Block concept, creating custom block
  • Q3. Creating custom node programmatically
  • Ans. 

    Creating custom nodes programmatically involves defining the node class, implementing the necessary functionality, and adding it to the system.

    • Define a new class for the custom node

    • Implement the desired functionality within the class

    • Add the custom node to the system programmatically

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. Basic salary discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - What ever technology working on, Just Be prepared with basic and some advance technology concept

Skills evaluated in this interview

Top TCS iON System Engineer Interview Questions and Answers

Q1. gcdYou are given two numbers, ‘X’ and ‘Y’. Your task is to find the greatest common divisor of the given two numbers. The Greatest Common Divisor of any two integers is the largest number that divides both integers. For Example: You are giv... read more
View answer (3)

System Engineer Interview Questions asked at other Companies

Q1. Who Won the Election???Elections are going on, and there are two candidates A and B, contesting with each other. There is a queue of voters and in this queue, some of them are supporters of A and some of them are supporters of B. Many of th... read more
View answer (12)
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is PHP? Full form of PHP? PHP latest version??
  • Ans. 

    PHP is a server-side scripting language used for web development. Full form is Hypertext Preprocessor. Latest version is PHP 8.0.

    • PHP is a popular scripting language for creating dynamic web pages.

    • Full form of PHP is Hypertext Preprocessor.

    • Latest version of PHP is PHP 8.0, released in November 2020.

  • Answered by AI
  • Q2. Different between Mysql vs Nosql?
  • Ans. 

    MySQL is a relational database management system, while NoSQL is a non-relational database management system.

    • MySQL is a structured database with tables and rows, while NoSQL is unstructured and can store data in various formats like key-value pairs, documents, graphs, etc.

    • MySQL is ACID-compliant, ensuring data integrity, while NoSQL sacrifices some ACID properties for better scalability and performance.

    • MySQL is suitabl...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Please study that all basic question answer

Skills evaluated in this interview

Web Developer Interview Questions asked at other Companies

Q1. Check Indices With Given DifferenceYou are given an integer array 'ARR' of size ‘N’ and two integers ‘A’ and ‘B’. You need to find if there are two distinct indices in the array, such that the absolute difference of values on those indices ... read more
View answer (4)

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 20 Sep 2024

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Job Portal and was interviewed in Aug 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Windows function of sql?
  • Ans. 

    Windows function in SQL is used to perform calculations across a set of table rows related to the current row.

    • Windows functions are used to calculate values based on a specific window or subset of rows within a table.

    • They allow for aggregation and ranking functions to be applied to a specific set of rows.

    • Examples include ROW_NUMBER(), RANK(), DENSE_RANK(), and NTILE().

  • Answered by AI

Skills evaluated in this interview

Data Engineer Interview Questions asked at other Companies

Q1. Optimal Strategy for a GameYou and your friend Ninjax are playing a game of coins. Ninjax place the 'N' number of coins in a straight line. The rule of the game is as follows: 1. Each coin has a value associated with it. 2. It’s a two-playe... read more
View answer (6)

TCS iON Interview FAQs

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

Some of the top questions asked at the TCS iON interview -

  1. What are the technologies you k...read more
  2. Manage projects with Repositories Clone a project to work on a local copy Contr...read more
  3. What programming language you k...read more
How long is the TCS iON interview process?

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

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TCS iON Interview Process

based on 337 interviews

Interview experience

4
  
Good
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TCS iON Reviews and Ratings

based on 1.2k reviews

3.9/5

Rating in categories

3.7

Skill development

3.8

Work-life balance

3.4

Salary

4.0

Job security

3.8

Company culture

3.3

Promotions

3.6

Work satisfaction

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