AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
Filter interviews by
TCS iON Interview Questions and Answers
216 Interview questions
A data engineer designs and builds systems for collecting, storing, and analyzing data efficiently.
Responsible for creating data pipelines to move data from various sources to storage systems.
Ensures data quality and integrity through validation and cleaning processes.
Works with big data technologies like Hadoop, Spark, and Kafka.
Collaborates with data scientists and analysts to understand data needs.
Example: Buil...
TCS iON is a cloud-based platform by Tata Consultancy Services for education and skill development, offering various assessment and learning solutions.
Cloud-Based Solutions: TCS iON provides a range of services hosted on the cloud, enabling easy access and scalability for educational institutions.
Assessment Tools: The platform offers tools for conducting online assessments, helping organizations evaluate skills an...
A network is a collection of interconnected devices that communicate and share resources with each other.
Networks can be wired (using cables) or wireless (using radio waves).
Examples include local area networks (LANs) in homes or offices.
The internet is a vast network connecting millions of devices globally.
Networks enable resource sharing, such as printers and files.
Protocols like TCP/IP govern how data is transm...
An IP address is a unique identifier for a device on a network, enabling communication over the Internet.
IP stands for Internet Protocol, which is a set of rules for routing and addressing packets of data.
There are two main types of IP addresses: IPv4 (e.g., 192.168.1.1) and IPv6 (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334).
IPv4 addresses are 32-bit numbers, while IPv6 addresses are 128-bit, allowing for a vast...
Subnetting is the process of dividing a network into smaller, manageable sub-networks to improve performance and security.
Subnetting helps in efficient IP address management.
It enhances network security by isolating segments.
Example: A Class C network (192.168.1.0) can be subnetted into smaller networks like 192.168.1.0/26.
Subnet masks (e.g., 255.255.255.192) define the network and host portions of an IP address.
I...
DHCP automates IP address assignment, simplifying network management and reducing configuration errors.
DHCP assigns IP addresses dynamically to devices on a network, ensuring no conflicts.
It reduces manual configuration, allowing devices to connect to the network seamlessly.
DHCP can provide additional network configuration, such as subnet mask and default gateway.
For example, when a laptop connects to Wi-Fi, DHCP ...
Routers connect different networks, while switches connect devices within the same network.
Routers operate at Layer 3 (Network Layer) of the OSI model, while switches operate at Layer 2 (Data Link Layer).
Routers can connect multiple networks (e.g., LAN to WAN), while switches connect devices within a single network (e.g., computers in an office).
Routers use IP addresses to route data, while switches use MAC addres...
Java is a statically typed, compiled language, while Python is dynamically typed and interpreted, offering different paradigms and use cases.
Java is statically typed, meaning variable types are defined at compile time, e.g., 'int num = 5;'.
Python is dynamically typed, allowing variable types to be defined at runtime, e.g., 'num = 5'.
Java requires explicit declaration of data types, while Python uses type inference...
Normalization is the process of organizing data to reduce redundancy and improve data integrity in databases.
Eliminates duplicate data by dividing a database into tables.
Ensures data dependencies make sense, reducing the chance of anomalies.
Common forms include 1NF (First Normal Form), 2NF, and 3NF (Third Normal Form).
Example: In a customer database, separating customer info and order info into different tables.
Java is a high-level, object-oriented programming language designed for portability and performance across platforms.
Developed by Sun Microsystems in 1995, now owned by Oracle.
Java is platform-independent due to the Java Virtual Machine (JVM).
It follows the principle of 'Write Once, Run Anywhere' (WORA).
Java is widely used for web applications, mobile apps (Android), and enterprise software.
Example: A simple Java ...
TCS iON Interview Experiences
385 interviews found
Anonymous
I applied via Recruitment Consultant and was interviewed in Jul 2021. There was 1 interview round.
Interview Questionnaire
7 Questions
- Q1. Project details and OOP with real time example ?
- Ans.
OOP is a programming paradigm that uses objects to represent real-world entities. Project details can be explained using OOP concepts.
OOP is based on the concept of classes and objects
Classes are like blueprints for objects
Objects have properties and methods
Encapsulation, inheritance, and polymorphism are key OOP concepts
Example: A car class can have properties like make, model, and year, and methods like start and sto...
- Q2. Interested area in coding Front end and backend
- Ans.
I am interested in both front-end and back-end development.
I enjoy creating user interfaces with HTML, CSS, and JavaScript.
I also like working with databases and server-side languages like Python and PHP.
I believe that having knowledge of both front-end and back-end development is important for creating well-rounded applications.
- Q3. Table relationship
- Q4. Asynchronous and multi-threading code. How to stop async code based on specification condition
- Ans.
To stop async code based on specification condition, use cancellation tokens.
Use CancellationTokenSource to create a cancellation token
Pass the cancellation token to the async method
Check the cancellation token in the async method using ThrowIfCancellationRequested()
Cancel the token when the specification condition is met
- Q5. Swap array elements and string reverse by using recursive method
- Ans.
Swapping array elements and reversing string using recursion.
Create a recursive function that swaps the first and last elements of the array until the middle is reached.
Create a recursive function that reverses the string by swapping the first and last characters until the middle is reached.
Use a temporary variable to store the value of the element being swapped.
Make sure to handle edge cases such as empty arrays or st...
- Q6. SVG and animation effect
- Q7. DOM, spread operator
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.
(3 Questions)
- Q1. SQL Array Oop
- 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"};
- 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 ...
(2 Questions)
- Q1. Jump game from leetcode
- Ans.
Jump Game problem involves determining if you can reach the last index of an array based on jump lengths.
The input is an array of non-negative integers, where each element represents the maximum jump length at that position.
You start at the first index and need to determine if you can reach the last index.
Example: For the array [2,3,1,1,4], you can jump to index 1 (3) and then to index 4 (last index).
A greedy approach ...
- 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
(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 ...
- 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
Interview Preparation Tips
I applied via Company Website and was interviewed in Nov 2024. There were 3 interview rounds.
Multiple-choice question.
(2 Questions)
- Q1. As per interviewer
- Q2. As per process
(2 Questions)
- Q1. As per company policy
- Q2. Same
Interview Preparation Tips
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Why should we here you
- Q2. Why did you went to work here?
- Ans.
I chose to work here for the opportunity to leverage my data skills in a dynamic environment and contribute to impactful projects.
The company's commitment to innovation aligns with my passion for data-driven decision-making.
I admire the collaborative culture here, which fosters teamwork and knowledge sharing.
The opportunity to work on diverse projects, such as analyzing customer behavior, excites me.
I believe my skills...
- Q3. How much salary do you expect?
- Ans.
I expect a salary that reflects my skills, experience, and the industry standards for a Data Analyst role.
Research industry standards: For example, Glassdoor or Payscale can provide insights on average salaries.
Consider my experience: With 3 years in data analysis, I would expect a salary in the mid-range.
Location matters: Salaries can vary significantly by region; for instance, urban areas typically offer higher pay.
V...
- Q4. Self introduction?
- Q5. What are your goals for future
- Ans.
My future goals include advancing my data analysis skills, contributing to impactful projects, and pursuing leadership opportunities.
Enhance technical skills by learning advanced analytics tools like Python and R.
Contribute to projects that drive business decisions, such as optimizing marketing strategies.
Pursue certifications in data analytics to validate my expertise, like Google Data Analytics.
Aim for a leadership r...
Interview Preparation Tips
Venkata Surya Prasad Madine
TCS NQT consists of MCQ and coding
(2 Questions)
- Q1. Internship expereinces
- Q2. I explained my resume
(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...
- Q2. Yes
Selected
I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.
Duration is 1 hr and topic is core java
(2 Questions)
- Q1. What i sth OOPS
- Q2. What i s abstract class
sudeep patil
I applied via Campus Placement
Time value distance clock
(1 Question)
- Q1. Points arrays oparetor
(2 Questions)
- Q1. Tell me Your self
- Q2. Why should higher you
Interview Preparation Tips
Don't vest time
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. What is tcs company
- Ans.
TCS (Tata Consultancy Services) is a global IT services, consulting, and business solutions organization headquartered in India.
Founded in 1968, TCS is part of the Tata Group, one of India's largest conglomerates.
It operates in over 46 countries, providing services in IT, consulting, and business solutions.
TCS is known for its strong focus on innovation and has invested heavily in research and development.
The company s...
- Q2. What did the company need for an employees
- Q3. Which post is better either HR or Floor Manager
- Q4. If the post will be hired then what should be done in the company
- Q5. What is the work of software engineer do in the company
Interview Preparation Tips
I applied via Campus Placement
2 questions were asked. Questions were easy - one from graph and one from dp.
(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...
- 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
(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.
- 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.
Skills evaluated in this interview
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Self Introduction
- Q2. Skillls for Degree
Top trending discussions
TCS iON Interview FAQs
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
- TCS iON Software Developer Interview Questions
- TCS iON System Engineer Interview Questions
- TCS iON Software Engineer Interview Questions
- TCS iON Java Developer Interview Questions
- TCS iON Assistant System Engineer Trainee Interview Questions
- TCS iON Assistant System Engineer Interview Questions
- TCS iON Business Analyst Interview Questions
- TCS iON Softwaretest Engineer Interview Questions
- Show more
Interview Questions for Popular Designations
- Software Developer Interview Questions
- System Engineer Interview Questions
- Software Engineer Interview Questions
- Java Developer Interview Questions
- Assistant System Engineer Interview Questions
- Assistant System Engineer Trainee Interview Questions
- Business Analyst Interview Questions
- Softwaretest Engineer Interview Questions
- Show more
Overall Interview Experience Rating
based on 362 interview experiences
Difficulty level
Duration
Interview Questions from Similar Companies
TCS iON Reviews and Ratings
based on 1.3k reviews
Rating in categories
|
Operations Executive
292
salaries
|  ₹1.5 L/yr - ₹4.4 L/yr |
|
System Engineer
151
salaries
| ₹2 L/yr - ₹9.5 L/yr |
|
Software Engineer
123
salaries
| ₹1 L/yr - ₹9.1 L/yr |
|
Software Developer
123
salaries
| ₹8.3 L/yr - ₹15.1 L/yr |
|
IT Manager
64
salaries
| ₹1.2 L/yr - ₹4.2 L/yr |
Wipro
Amazon
TCS
ITC Infotech
- Home >
- Interviews >
- TCS iON Interview Questions
