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TCS iON Interview Questions and Answers

Updated 26 Jul 2025
Popular Designations

148 Interview questions

A Business Development Associate was asked 3mo ago
Q. What is tcs ion
Ans. 

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...

View all Business Development Associate interview questions
An IT Analyst was asked 3mo ago
Q. Tell me about yourself and your roles and responsibilities.
Ans. 

I am an IT Analyst with expertise in system analysis, project management, and data-driven decision-making.

  • Conduct thorough analysis of IT systems to identify areas for improvement, such as streamlining processes or enhancing user experience.

  • Collaborate with cross-functional teams to gather requirements and translate them into technical specifications, ensuring alignment with business goals.

  • Utilize data analytics t...

View all IT Analyst interview questions
A HR Officer was asked 3mo ago
Q. Your resume should accurately reflect your skills and experience.
Ans. 

My resume reflects my skills, experiences, and achievements relevant to the HR Officer role, showcasing my qualifications effectively.

  • Experience in recruitment: Successfully filled 20+ positions in a year, improving team efficiency.

  • Knowledge of labor laws: Familiar with local employment regulations, ensuring compliance in hiring practices.

  • Strong communication skills: Conducted training sessions for new hires, enha...

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A Network Administrator was asked 3mo ago
Q. What is the purpose of DHCP (Dynamic Host Configuration Protocol)?
Ans. 

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 ...

View all Network Administrator interview questions
A Network Administrator was asked 3mo ago
Q. What are the differences between routers and switches?
Ans. 

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...

View all Network Administrator interview questions
A System Engineer was asked 4mo ago
Q. What is Normalization?
Ans. 

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.

View all System Engineer interview questions

TCS iON HR Interview Questions

59 questions and answers

Q. Why is it important for employees to maintain a work-life balance?
Q. What was your previous role in the company?
Q. Give us a live example of how you used your data analysis skills in your pr ... read more
A Software Developer was asked 5mo ago
Q. What are loops in Python?
Ans. 

Loops in Python are constructs that allow repeated execution of a block of code based on a condition or a sequence.

  • Types of loops: 'for' loops and 'while' loops.

  • For loop example: 'for i in range(5): print(i)' prints numbers 0 to 4.

  • While loop example: 'count = 0; while count < 5: print(count); count += 1' prints numbers 0 to 4.

  • Loops can be controlled using 'break' to exit and 'continue' to skip to the next itera...

View all Software Developer interview questions
Are these interview questions helpful?
A Software Developer was asked 5mo ago
Q. What is the process to find a substring within an array?
Ans. 

To find a substring within an array of strings, iterate through each string and check if the substring exists in each string.

  • Iterate through each string in the array

  • Use the indexOf() method to check if the substring exists in each string

  • Return the index of the string if the substring is found, otherwise return -1

View all Software Developer interview questions
🔥 Asked by recruiter 3 times
A Java Developer was asked 7mo ago
Q. What is an abstract class?
Ans. 

An abstract class in Java is a class that cannot be instantiated and may contain abstract methods that must be implemented by subclasses.

  • An abstract class can have both abstract methods (without a body) and concrete methods (with a body).

  • Example: 'abstract class Animal { abstract void sound(); }'

  • Subclasses must implement the abstract methods: 'class Dog extends Animal { void sound() { System.out.println("Bark"); }...

View all Java Developer interview questions
A Software Development Engineer was asked 7mo ago
Q. 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

View all Software Development Engineer interview questions

TCS iON Interview Experiences

388 interviews found

IT fresher Interview Questions & Answers

user image Anonymous

posted on 19 Nov 2020

I applied via Campus Placement

Interview Questionnaire 

16 Questions

  • Q1. Introduce yourself
  • Ans. 

    I am a recent IT graduate with a passion for coding and problem-solving.

    • Graduated with a degree in IT

    • Proficient in programming languages such as Java and Python

    • Experience in developing web applications using HTML, CSS, and JavaScript

    • Strong analytical and problem-solving skills

    • Ability to work well in a team and communicate effectively

  • Answered by AI
  • Q2. Being a mathematical graduate how can you cope up in IT
  • Ans. 

    Mathematics provides a strong foundation for problem-solving and analytical skills, which are essential in IT.

    • Mathematics involves logical thinking and problem-solving, which are crucial skills in IT.

    • Mathematical concepts such as algorithms, statistics, and calculus are widely used in IT.

    • Mathematics also helps in developing a strong analytical mindset, which is essential in data analysis and software development.

    • Mathem...

  • Answered by AI
  • Q3. What are steps taken to join IT
  • Ans. 

    Steps to join IT include obtaining relevant education, gaining experience through internships or entry-level positions, and networking.

    • Obtain relevant education such as a degree in computer science or IT

    • Gain experience through internships or entry-level positions

    • Develop technical skills through online courses or certifications

    • Build a professional network through attending industry events or joining professional organiz...

  • Answered by AI
  • Q4. What are the technologies you know
  • Ans. 

    I have knowledge of programming languages such as Java, Python, and C++. I am also familiar with web development technologies like HTML, CSS, and JavaScript.

    • Proficient in Java, Python, and C++ programming languages

    • Familiar with web development technologies like HTML, CSS, and JavaScript

    • Knowledge of database management systems like MySQL and Oracle

    • Experience with version control systems like Git

    • Understanding of software...

  • Answered by AI
  • Q5. Okay tell me about that
  • Q6. What programming language you know
  • Ans. 

    I know multiple programming languages including Java, Python, and C++.

    • Java - used for building enterprise-level applications

    • Python - known for its simplicity and versatility

    • C++ - used for system programming and game development

  • Answered by AI
  • Q7. What is a pointer
  • Ans. 

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

    • Pointers allow direct manipulation of memory.

    • They are used to access and modify data indirectly.

    • Pointers are commonly used in dynamic memory allocation.

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

  • Answered by AI
  • Q8. What is a null pointer
  • Ans. 

    A null pointer is a pointer that does not point to any memory location.

    • A null pointer is represented by the value 0 or NULL.

    • Dereferencing a null pointer results in a segmentation fault.

    • Null pointers are commonly used to indicate the end of a linked list or array.

    • Null pointers can be assigned to any pointer type.

  • Answered by AI
  • Q9. What are structures
  • Ans. 

    Structures are user-defined data types that allow storing multiple data types under a single name.

    • Structures are used to group related data together.

    • They can contain variables of different data types.

    • Structures can also contain functions.

    • Structures are defined using the 'struct' keyword.

    • Example: struct student { char name[20]; int age; float marks; };

    • Structures can be passed as arguments to functions.

    • They can also be u...

  • Answered by AI
  • Q10. What is nested structure
  • Ans. 

    A nested structure is a structure within another structure in programming.

    • It allows for more complex data structures to be created

    • It can be used in various programming languages such as C++, Java, and Python

    • An example of a nested structure is a struct within a struct in C++

  • Answered by AI
  • Q11. What are classes
  • Ans. 

    Classes are templates for creating objects that have similar properties and methods.

    • Classes are used in object-oriented programming.

    • They define the properties and methods that objects of that class will have.

    • Objects are instances of a class.

    • Classes can inherit properties and methods from other classes.

    • Examples of classes include 'Person', 'Car', and 'Animal'.

  • Answered by AI
  • Q12. What are classes in C++
  • Ans. 

    Classes in C++ are user-defined data types that encapsulate data and functions.

    • Classes are used for object-oriented programming.

    • They allow for data abstraction and encapsulation.

    • Classes can have member variables and member functions.

    • Objects are instances of classes.

    • Inheritance and polymorphism are key features of classes.

  • Answered by AI
  • Q13. I said no idea
  • Q14. Where do you see yourself in 5 years
  • Ans. 

    In 5 years, I see myself as a senior IT professional, leading a team and contributing to the growth and success of the organization.

    • Leading a team of IT professionals

    • Contributing to the growth and success of the organization

    • Continuously learning and staying updated with the latest technologies

    • Taking up challenging projects and delivering successful solutions

    • Building strong professional relationships and networking with...

  • Answered by AI
  • Q15. According to you what do you need ...technical skills or team collabration
  • Ans. 

    Both technical skills and team collaboration are crucial, but collaboration often drives project success in IT.

    • Technical skills are essential for problem-solving and executing tasks effectively.

    • Team collaboration fosters innovation, as diverse perspectives lead to better solutions.

    • In a project, a technically skilled individual may struggle without effective communication and teamwork.

    • For example, in software developmen...

  • Answered by AI
  • Q16. Can you work in night shift and can you relocate
  • Ans. 

    Yes, I am willing to work in night shifts and relocate if required.

    • I am flexible and adaptable to different work schedules, including night shifts.

    • I understand the importance of providing 24/7 support in the IT industry.

    • I am open to relocating for better career opportunities and growth.

    • I have a strong commitment to my work and can adjust to new environments.

    • I am willing to make necessary arrangements to ensure smooth t...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - It was good...You shouldnt be tensed...you can talk whatever you know...be confident always

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected 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
  • 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
  • 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
Interview experience
3
Average
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Not Selected

I appeared for an interview in Jun 2025, where I was asked the following questions.

  • Q1. Why is it important for employees to maintain a work-life balance?
  • Ans. 

    Work-life balance is crucial for employee well-being, productivity, and overall job satisfaction.

    • Prevents burnout: Employees who maintain balance are less likely to experience stress and exhaustion. For example, taking regular breaks can enhance focus.

    • Enhances productivity: A well-rested employee is more efficient. For instance, flexible hours can lead to better performance.

    • Improves job satisfaction: Employees who feel...

  • Answered by AI
  • Q2. What strategies can you use to motivate yourself to work effectively within a workforce culture?
  • Ans. 

    To motivate myself in a workforce culture, I focus on collaboration, personal growth, and aligning my goals with team objectives.

    • Set clear personal goals that align with team objectives, such as aiming for a specific project milestone.

    • Engage in open communication with colleagues to foster a supportive environment, like regular check-ins to share progress.

    • Seek feedback and mentorship from peers to enhance skills and sta...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't lose hope; keep trying until you succeed.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

(2 Questions)

  • Q1. Jump game from leetcode
  • 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
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
  • 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

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice with LeetCode and ensure that everything is reflected on your resume.
Interview experience
4
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
  • Q2. As per process
Round 3 - HR 

(2 Questions)

  • Q1. As per company policy
  • Q2. Same
  • Ans. 

    The question requires a detailed response about a specific topic or process relevant to the role of a Process Associate.

    • Understand the core responsibilities of a Process Associate, such as data entry and process management.

    • Example: Managing and optimizing workflows to improve efficiency.

    • Familiarize yourself with tools and software used in process management, like Excel or specific CRM systems.

    • Example: Using Excel for d...

  • Answered by AI

Interview Preparation Tips

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

Data Analyst Interview Questions & Answers

user image Anonymous

posted on 27 Jun 2025

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

  • Answered by AI
  • 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...

  • Answered by AI
  • 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...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Stay updated with skills, tailor your resume, apply consistently, prepare for interviews, and keep a positive attitude.

System Engineer Interview Questions & Answers

user image Venkata Surya Prasad Madine

posted on 12 Dec 2024

Interview experience
4
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
  • Q2. I explained my resume
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
  • Q2. Yes

UI Developer Interview Questions & Answers

user image Anonymous

posted on 26 Jul 2025

Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Jun 2025, where I was asked the following questions.

  • Q1. SQL Q ML
  • Q2. PYTHIOM ML DL
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected 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
  • Q2. What i s abstract class

Software Developer Interview Questions & Answers

user image sudeep patil

posted on 27 Nov 2024

Interview experience
5
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
Round 3 - HR 

(2 Questions)

  • Q1. Tell me Your self
  • Q2. Why should higher you

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep learning every time
Don't vest time
Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Mar 2025, where I was asked the following questions.

  • Q1. What is tcs company
  • 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

Interview preparation tips for other job seekers - I want to drive the post but I can't get an admit card to enter into the exam and having the chance for an interview process.

Top trending discussions

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Interview Hub
4d (edited)
anshitanegi
·
ex -
Planet Spark
When HR’s Chinese English made me drop the interview!
So, I talked to the HR yesterday about the interview. I asked Please send me the location But their English… bro I was shocked! It was like talking to someone jisne english nahi kuch ar hi seekh liya ho, if the HR’s English is this I can only imagine the rest of the company I decided to drop the interview with this chinese english😶‍🌫️
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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
What are the most common questions asked in TCS iON HR round?

The most common HR questions asked in TCS iON interview are -

  1. Where do you see yourself in 5 yea...read more
  2. What is your family backgrou...read more
  3. What are your strengths and weakness...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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Overall Interview Experience Rating

4/5

based on 366 interview experiences

Difficulty level

Easy 27%
Moderate 64%
Hard 9%

Duration

Less than 2 weeks 53%
2-4 weeks 21%
4-6 weeks 9%
6-8 weeks 5%
More than 8 weeks 11%
View more

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TCS iON Reviews and Ratings

based on 1.3k reviews

3.8/5

Rating in categories

3.7

Skill development

3.7

Work-life balance

3.4

Salary

4.0

Job security

3.8

Company culture

3.3

Promotions

3.6

Work satisfaction

Explore 1.3k Reviews and Ratings
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