700+ TCS iON Interview Questions & Answers | Complete Prep Guide 2025

TCS iON Interview Experiences

Popular Designations

368 interviews found

Graduate Engineer Trainee (Get) Interview Questions & Answers

Anonymous

posted on 16 Nov 2024

Interview experience

Good

Difficulty level

Moderate

Process Duration

Less than 2 weeks

Result

Not Selected

I applied via Campus Placement 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

Add your answer

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

Add your answer

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)

Software Engineer Interview Questions & Answers

Anonymous

posted on 11 Dec 2024

Interview experience

Good

Difficulty level

Moderate

Process Duration

2-4 weeks

Result

Selected

I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical

(3 Questions)

Q1. SQL Array Oop

Add your answer

Q2. Array defintiion and uses

Ans.

An array is a data structure that stores a collection of elements of the same data type.

Arrays are used to store multiple values in a single variable.
Elements in an array are accessed by their index, starting from 0.
Example: String[] names = {"Alice", "Bob", "Charlie"};

Answered by AI

Add your answer

Q3. Data structures and its uses

Ans.

Data structures are used to organize and store data efficiently in computer memory.

Data structures help in efficient data retrieval, insertion, and deletion operations.
Examples include arrays, linked lists, stacks, queues, trees, and graphs.
Each data structure has its own advantages and use cases based on the requirements of the application.
For example, arrays are used for random access to elements, while linked lists

Answered by AI

Add your answer

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more

View answer (203)

TCS iON Interview Questions and Answers for Freshers

Software Development Engineer Interview Questions & Answers

Anonymous

posted on 20 Dec 2024

Interview experience

Average

Difficulty level

Process Duration

Result

Round 1 - Coding Test

(2 Questions)

Q1. Jump game from leetcode

Add your answer

Q2. Rotation of matrix by 45 degress

Ans.

To rotate a matrix by 45 degrees, transpose the matrix and then reverse the rows.

Transpose the matrix
Reverse the rows of the transposed matrix

Answered by AI

Add your answer

Round 2 - HR

(2 Questions)

Q1. What is encapsulation in oops?

Ans.

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

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 an object's attributes.
Encapsulation also enables the concept of data abstraction, where only relevant details are exposed to the outside world.
By using access modifiers ...

Answered by AI

Add your answer

Q2. How do you configure MySQL database ?

Ans.

MySQL database can be configured using configuration files like my.cnf, command line options, and environment variables.

Use my.cnf file to configure settings like port number, data directory, and buffer sizes
Command line options can be used to override settings from my.cnf file
Environment variables like MYSQL_ROOT_PASSWORD can be used to set passwords during installation

Answered by AI

Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice with LeetCode and ensure that everything is reflected on your resume.

Software Development Engineer Interview Questions asked at other Companies

Q1. Given an acyclic graph of a city where each edge represents a road in the city and each vertex represents an crossing. Write an algo to find out the minimum number of vertices at which a policemen will be kept so that all the roads are cove... read more

View answer (2)

Process Associate Interview Questions & Answers

Anonymous

posted on 22 Dec 2024

Interview experience

Good

Difficulty level

Moderate

Process Duration

Less than 2 weeks

Result

Not Selected

I applied via Company Website and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - Aptitude Test

Multiple-choice question.

Round 2 - Technical

(2 Questions)

Q1. As per interviewer

Add your answer

Q2. As per process

Add your answer

Round 3 - HR

(2 Questions)

Q1. As per company policy

Add your answer

Q2. Same

Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Help me find better job opportunities in the life sciences sector.

Process Associate Interview Questions asked at other Companies

Q1. How will you explain a red colour (or any colour) to a person who is blind since his or her birth?

View answer (21)

System Engineer Interview Questions & Answers

Venkata Surya Prasad Madine

posted on 12 Dec 2024

Interview experience

Good

Difficulty level

Process Duration

Result

Round 1 - Coding Test

TCS NQT consists of MCQ and coding

Round 2 - Technical

(2 Questions)

Q1. Internship expereinces

Add your answer

Q2. I explained my resume

Add your answer

Round 3 - HR

(2 Questions)

Q1. Is it ok for Reallocation

Ans.

Yes, reallocation is acceptable in certain situations to optimize resources.

Reallocation can be acceptable if it helps optimize resources and improve efficiency.
For example, reallocating server resources to handle increased traffic during peak hours.
Reallocation should be carefully planned and executed to avoid negative impacts on system performance.
Regular monitoring and evaluation of the reallocated resources is impo

Answered by AI

Add your answer

Q2. Yes

Add your 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 (9)

Get interview-ready with Top TCS iON Interview Questions

Java Developer Interview Questions & Answers

Anonymous

posted on 21 Dec 2024

Interview experience

Bad

Difficulty level

Easy

Process Duration

Less than 2 weeks

Result

Selected

I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - Aptitude Test

Duration is 1 hr and topic is core java

Round 2 - HR

(2 Questions)

Q1. What i sth OOPS

Add your answer

Q2. What i s abstract class

Add your answer

Java Developer Interview Questions asked at other Companies

Q1. Sort 0 and 1 Problem Statement Given an integer array ARR of size N containing only integers 0 and 1, implement a function to sort this array. The solution should scan the array only once without using any additional arrays. Input: The firs... read more

View answer (3)

Software Developer Interview Questions & Answers

sudeep patil

posted on 27 Nov 2024

Interview experience

Excellent

Difficulty level

Process Duration

Result

I applied via Campus Placement

Round 1 - Aptitude Test

Time value distance clock

Round 2 - Technical

(1 Question)

Q1. Points arrays oparetor

Add your answer

Round 3 - HR

(2 Questions)

Q1. Tell me Your self

Add your answer

Q2. Why should higher you

Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep learning every time
Don't vest time

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 (42)

C Developer Interview Questions & Answers

Anonymous

posted on 11 Sep 2024

Interview experience

Average

Difficulty level

Process Duration

Result

I applied via Campus Placement

Round 1 - Coding Test

2 questions were asked. Questions were easy - one from graph and one from dp.

Round 2 - Technical

(2 Questions)

Q1. Difference between multi-programming and multi-tasking.

Ans.

Multi-programming involves running multiple programs on a single processor, while multi-tasking involves running multiple tasks within a single program.

Multi-programming allows multiple programs to be loaded into memory and executed concurrently, switching between them to utilize processor time efficiently.
Multi-tasking allows a single program to perform multiple tasks simultaneously, such as running multiple threads o...

Answered by AI

Add your answer

Q2. How to delete the middle element of a linked list?

Ans.

To delete the middle element of a linked list, find the middle element using slow and fast pointers, then remove it by adjusting the pointers.

Use slow and fast pointers to find the middle element
Adjust pointers to skip the middle element and connect the surrounding nodes
Free the memory of the deleted node

Answered by AI

Add your answer

Round 3 - HR

(2 Questions)

Q1. Are you willing to relocate?

Ans.

Yes, I am open to relocating for the right opportunity.

I am open to relocating for the right job opportunity.
I am willing to move to a new location if required for the job.
I am flexible and willing to relocate for the right position.

Answered by AI

Add your answer

Q2. Why do you want to join TCS?

Ans.

I want to join TCS because of its reputation for providing challenging projects and opportunities for growth.

TCS is known for its innovative projects in various industries.
I am impressed by TCS's commitment to employee development.
I believe TCS will provide me with a platform to enhance my skills and knowledge.

Answered by AI

Add your answer

Skills evaluated in this interview

C Developer Interview Questions asked at other Companies

Q1. String Transformation Problem Given a string (STR) of length N, you are tasked to create a new string through the following method: Select the smallest character from the first K characters of STR, remove it from STR, and append it to the n... read more

View answer (1)

Sdet Engineer Interview Questions & Answers

ANKIT PASWAN

posted on 8 Oct 2024

Interview experience

Excellent

Difficulty level

Moderate

Process Duration

2-4 weeks

Result

Not Selected

I applied via Campus Placement and was interviewed in Sep 2024. There were 3 interview rounds.

Round 1 - Aptitude Test

It is very easy round

Round 2 - Coding Test

One easy and one medium

Round 3 - Technical

(2 Questions)

Q1. Four pillers of oops

Ans.

Encapsulation, Inheritance, Polymorphism, Abstraction

Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Class in Java
Inheritance: Ability of a class to inherit properties and behavior from another class. Example: Subclass extending a superclass
Polymorphism: Ability to present the same interface for different data types. Example: Method overloading in Java
Abstraction: Hiding t...

Answered by AI

Add your answer

Q2. What is sql and database

Ans.

SQL is a programming language used to manage and manipulate data in relational databases.

SQL stands for Structured Query Language
It is used to communicate with databases to perform tasks like querying, updating, and deleting data
Common SQL commands include SELECT, INSERT, UPDATE, DELETE
Examples of popular databases that use SQL include MySQL, PostgreSQL, Oracle

Answered by AI

Add your answer

Skills evaluated in this interview

Sdet Engineer Interview Questions asked at other Companies

Q1. Tell me about the projects and knowledge on selenium api and etc?

View answer (2)

Senior Modeller Interview Questions & Answers

Irene Diana

posted on 16 Aug 2024

Interview experience

Excellent

Difficulty level

Process Duration

Result

Round 1 - Technical

(4 Questions)

Q1. SQL window function

Add your answer

Q2. About joins and explain

Add your answer

Q3. Performance optimization

Add your answer

Q4. Normalisation and denormalization

Add your answer

Round 2 - HR

(2 Questions)

Q1. Why you need job change

Ans.

Seeking new challenges and growth opportunities in a more senior role.

Looking for career advancement
Seeking new challenges and projects
Interested in expanding skill set and knowledge
Want to take on more responsibilities and leadership roles

Answered by AI

Add your answer

Q2. Why tcs after a long gap

Ans.

TCS offers a challenging work environment and opportunities for growth after a long gap.

TCS is known for its diverse projects and cutting-edge technologies, providing a stimulating work environment.
After a long gap, I am eager to re-enter the workforce and TCS offers a platform for me to showcase my skills and expertise.
TCS has a strong reputation in the industry and I believe working here will help me enhance my caree

Answered by AI

Add your answer

Senior Modeller Interview Questions asked at other Companies

Q1. How do you make different systems to talk to each other? what are the considerations to design a data product? challenges and scenario based

View answer (1)

System Engineer 3 Interview Questions & Answers

mohit paryani

posted on 16 Dec 2024

Interview experience

Good

Difficulty level

Moderate

Process Duration

Result

Round 1 - Aptitude Test

Basic aptitude questions

Round 2 - Technical

(1 Question)

Q1. Questions related to logic gates

Add your answer

Round 3 - HR

(1 Question)

Q1. Questions related to puzzles to judge your reasoning abilities

Add your answer

System Engineer 3 Interview Questions asked at other Companies

Q1. What is Object Oriented Programming? What is difference between drop and delete? (DBMS question)

View answer (1)

Top trending discussions

View All

I have 7 YOE. from Delhi Current CTC - 9.25LPA + 75K varriable. Working Skillset is Kubernetes and Openstack. Current - 100% WFH 1. NTT Data- Noida Hybrid CTC... read more

Got a question about TCS iON?

Ask anonymously on communities.

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 -

What are the technologies you k...read more
Manage projects with Repositories Clone a project to work on a local copy Contr...read more
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.

Tell us how to improve this page.

TCS iON Interviews By Designations

Interview Questions for Popular Designations

TCS iON Interview Process

based on 341 interviews

Interview experience

Good

Anonymously discuss salaries, work culture, and many more

Get Ambitionbox App

Accenture Interview Questions

3.8

• 8.1k Interviews

Infosys Interview Questions

3.6

• 7.5k Interviews

Wipro Interview Questions

3.7

• 5.6k Interviews

Cognizant Interview Questions

3.8

• 5.6k Interviews

Capgemini Interview Questions

3.7

• 4.8k Interviews

Tech Mahindra Interview Questions

3.5

• 3.8k Interviews

HCLTech Interview Questions

3.5

• 3.8k Interviews

LTIMindtree Interview Questions

3.8

• 2.9k Interviews

IBM Interview Questions

4.0

• 2.3k Interviews

ITC Infotech Interview Questions

3.6

• 334 Interviews

View all

Bharati Vidyapeeth's College of Engineering for Women, Pune Placement Questions

2 Interviews

Inderprastha Engineering College, Ghaziabad Placement Questions

1 Interview

Indian Institute of Management (IIM), Kolkatta Placement Questions

1 Interview

Jawaharlal Nehru National College of Engineering, Shimoga Placement Questions

1 Interview

Netaji Subhas Institute of Technology (NSIT) Placement Questions

1 Interview

Kongu Arts and Science College, Erode Placement Questions

1 Interview

Patna University Placement Questions

1 Interview

View all

TCS iON Salaries in India

Operations Executive 259 salaries	₹0 L/yr - ₹0 L/yr
Software Developer 154 salaries	₹0 L/yr - ₹0 L/yr
System Engineer 126 salaries	₹0 L/yr - ₹0 L/yr
Software Engineer 118 salaries	₹0 L/yr - ₹0 L/yr
IT Manager 57 salaries	₹0 L/yr - ₹0 L/yr