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10+ TCS Trainee Interview Questions and Answers

Updated 8 Jan 2025

Q1. 1.what is the use of global variable? 2what is oops concept? 3.what is the difference between java and c++? and many more

Ans.

Answering questions related to programming concepts and languages.

  • Global variables are accessible throughout the program and can be used to store values that need to be accessed by multiple functions.

  • OOPs concept is a programming paradigm that focuses on objects and their interactions to solve problems.

  • Java is platform-independent and has automatic memory management, while C++ is faster and allows for more control over memory management.

  • Other questions may include topics such...read more

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Q2. Prime number program and also to explain it.

Ans.

A prime number program checks if a given number is divisible only by 1 and itself.

  • A prime number is a positive integer greater than 1 that has no positive integer divisors other than 1 and itself.

  • To check if a number is prime, we can divide it by all numbers from 2 to the square root of the number.

  • If the number is divisible by any of these numbers, it is not prime.

  • If the number is not divisible by any of these numbers, it is prime.

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TCS Trainee Interview Questions and Answers for Freshers
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Q3. what technical lang. you know?

Ans.

I am proficient in several technical languages including Java, Python, and C++.

  • Proficient in Java, Python, and C++

  • Experience with HTML, CSS, and JavaScript

  • Familiarity with SQL and database management

  • Knowledge of MATLAB and R for data analysis

  • Comfortable with Git and version control systems

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Q4. what is over loading & over riding

Ans.

Overloading is when a single function or method has multiple definitions with different parameters. Overriding is when a subclass provides a specific implementation for a method that is already defined in its superclass.

  • Overloading occurs within the same class, while overriding occurs between a superclass and its subclass

  • Overloading is resolved at compile time based on the number and type of arguments, while overriding is resolved at runtime based on the object type

  • Example of...read more

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Q5. What is market-basket analysis?

Ans.

Market-basket analysis is a technique used in data mining to discover relationships between items purchased together.

  • It involves analyzing customer purchase data to identify patterns and associations between products frequently bought together.

  • The results can be used for strategies like product placement, cross-selling, and targeted marketing.

  • Example: If customers who buy bread also tend to buy butter, a store may place these items close to each other to increase sales.

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Q6. All business processes incuding configurations

Ans.

Business processes and configurations are essential for efficient operations.

  • Business processes refer to the set of activities and tasks that are performed to achieve a specific goal or objective.

  • Configurations refer to the settings and parameters that are used to customize software or hardware to meet specific requirements.

  • Both business processes and configurations are important for ensuring efficient operations and maximizing productivity.

  • For example, a company may have a b...read more

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Q7. difference between over loading & over riding

Ans.

Overloading is when a method has the same name but different parameters in the same class, while overriding is when a method in a subclass has the same name and parameters as a method in its superclass.

  • Overloading occurs within the same class, while overriding occurs in a subclass.

  • Overloading involves methods with the same name but different parameters, while overriding involves methods with the same name and parameters.

  • Overloading is resolved at compile time, while overridin...read more

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Q8. What is python?

Ans.

Python is a high-level, interpreted programming language known for its simplicity and readability.

  • Python is used for web development, data analysis, artificial intelligence, and more.

  • It has a large standard library and supports multiple programming paradigms.

  • Python code is often shorter and easier to read than other languages.

  • Example: print('Hello, world!') will output 'Hello, world!' to the console.

  • Example: import pandas as pd will import the pandas library and alias it as '...read more

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Q9. What is Queue explain that

Ans.

A queue is a data structure that follows the First-In-First-Out (FIFO) principle.

  • Elements are added to the back of the queue and removed from the front.

  • Common operations include enqueue (add to back) and dequeue (remove from front).

  • Examples include waiting in line, printing jobs, and processing tasks in order.

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Q10. what is your thought about AI

Ans.

I believe AI has the potential to revolutionize industries and improve efficiency, but also raises ethical concerns.

  • AI can automate repetitive tasks and improve productivity

  • AI can analyze large amounts of data quickly and accurately

  • AI can assist in medical diagnosis and treatment planning

  • Ethical concerns include job displacement and bias in algorithms

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Q11. oops concepts and real time Example

Ans.

Oops concepts are fundamental to object-oriented programming. Real-time examples include inheritance, polymorphism, and encapsulation.

  • Inheritance: A car is a vehicle, but a vehicle is not necessarily a car.

  • Polymorphism: A shape can be a square, rectangle, or triangle, but they all have a common method of calculating area.

  • Encapsulation: A bank account has private data such as balance and account number, which can only be accessed through specific methods.

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Q12. tell me about java and c

Ans.

Java and C are both programming languages used for developing software applications.

  • Java is an object-oriented language while C is a procedural language.

  • Java is platform-independent while C is platform-dependent.

  • Java has automatic memory management while C requires manual memory management.

  • C is faster than Java in terms of execution speed.

  • Java is commonly used for developing web applications while C is used for system programming and embedded systems.

  • Examples of Java-based ap...read more

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Q13. TCS business in Industry

Ans.

TCS is a global IT services, consulting, and business solutions organization.

  • TCS provides services to various industries such as banking, healthcare, retail, and manufacturing.

  • It offers digital transformation solutions to help businesses adapt to the changing market.

  • TCS has a strong presence in the financial services industry, providing services to over 300 banks worldwide.

  • The company has also made significant investments in emerging technologies such as AI, blockchain, and I...read more

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Q14. Write a program to print star pattern

Ans.

Program to print star pattern in different shapes

  • Use nested loops to control the number of rows and columns

  • Use if-else statements to determine when to print a star or a space

  • Experiment with different loop structures to create various patterns

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Q15. Types of errors in python.

Ans.

Types of errors in Python include syntax errors, runtime errors, and logical errors.

  • Syntax errors occur when the code violates the language's grammar rules.

  • Runtime errors occur during program execution and can be caused by various factors such as invalid input or memory issues.

  • Logical errors occur when the code runs without errors but produces incorrect results.

  • Examples of errors include NameError, TypeError, and ValueError.

  • Debugging tools such as print statements and debugge...read more

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Q16. What are oops ?

Ans.

Oops stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.

  • Oops is a programming paradigm that uses objects to design applications.

  • It focuses on data encapsulation, inheritance, polymorphism, and abstraction.

  • Examples of Oops languages include Java, C++, and Python.

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Q17. What is ur hobby

Ans.

My hobby is painting. I enjoy expressing my creativity through colors and shapes on canvas.

  • I love experimenting with different painting techniques such as acrylic, watercolor, and oil painting

  • I often find inspiration from nature, landscapes, and abstract art

  • Attending art classes and workshops helps me improve my skills and learn new techniques

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Q18. Scope in Python.

Ans.

Python has a wide scope in various domains such as web development, data science, machine learning, and automation.

  • Python is widely used in web development frameworks like Django and Flask

  • Python is extensively used in data science for data analysis, visualization, and machine learning

  • Python is used for automation tasks like web scraping, testing, and deployment

  • Python is also used in scientific computing, game development, and desktop applications

  • Python has a large community a...read more

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Q19. Ur strength and your weekness

Ans.

My strength is my ability to work well under pressure and meet deadlines. My weakness is that I can be overly critical of my own work.

  • Strength: Ability to work well under pressure

  • Strength: Meeting deadlines consistently

  • Weakness: Being overly critical of my own work

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Interview Process at TCS Trainee

based on 39 interviews
4 Interview rounds
Aptitude Test Round - 1
Aptitude Test Round - 2
HR Round - 1
HR Round - 2
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