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TCS Software Developer Interview Questions and Answers
238 Interview questions
Lambda functions are anonymous functions that can be used for concise code and functional programming in languages like Python.
Lambda functions are defined using the 'lambda' keyword.
They can take any number of arguments but can only have one expression.
Lambda functions are often used with functions like map(), filter(), and reduce() for functional programming.
Example: lambda x: x*2 defines a lambda function that ...
A collection is a group of related objects or data items that are stored together.
Collections can be used to store and manipulate multiple items of the same type.
Examples of collections include arrays, lists, sets, and maps.
Collections provide methods for adding, removing, and accessing elements.
Event Emitter is a class in Node.js that allows objects to subscribe to events and be notified when those events occur.
Event Emitter is a core module in Node.js
It allows multiple objects to listen for and respond to events
Objects can emit events using the 'emit' method
Listeners can be added using the 'on' method
Example: const EventEmitter = require('events');
Event loop is a mechanism that allows for asynchronous programming by handling events and callbacks.
Event loop is a single-threaded mechanism used in programming languages like JavaScript to handle asynchronous operations.
It continuously checks the call stack for any functions that need to be executed, and processes them in a non-blocking manner.
Event loop allows for efficient handling of I/O operations, timers, a...
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Node.js is a runtime environment that allows you to run JavaScript on the server side.
Node.js uses an event-driven, non-blocking I/O model, making it lightweight and efficient.
It is built on the V8 JavaScript engine from Google Chrome.
Node.js allows you to easily build scalable network applications.
Example: Creating a simple HTTP server in Node.js - const http = require('http'); http.createServer((req, res) => { ...
HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to find the index in the array where the pair will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
HashMap allows null keys and values, and can...
Find the longest common prefix among an array of strings.
Iterate through the characters of the first string and compare with other strings
Stop when a character doesn't match or reach end of any string
Return the prefix found
An anagram is a word or phrase formed by rearranging the letters of a different word or phrase.
Create a function that takes in two strings and checks if they are anagrams of each other
Remove spaces and punctuation from the strings before comparing
Convert both strings to lowercase for case-insensitive comparison
String is immutable, StringBuffer is mutable in Java.
String is immutable, meaning its value cannot be changed once it is created.
StringBuffer is mutable, meaning its value can be changed after it is created.
StringBuffer is synchronized, making it thread-safe for use in multi-threaded environments.
StringBuffer is slower than String for most operations due to synchronization.
Example: String str = "Hello"; StringBuff...
Program to reverse a string using array of characters
Create a character array from the input string
Use two pointers to swap characters from start and end of the array
Continue swapping until the pointers meet in the middle
TCS Software Developer Interview Experiences
541 interviews found
Anonymous
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Be ready to explain and implement common data structures like arrays, linked lists, trees, and graphs, and algorithms like sorting and searching.
- Q2. Expect questions on basic programming concepts like loops, conditions, and data types, as well as your preferred programming language
- Q3. Be prepared to discuss networking concepts like TCP/IP, IP addressing, and network protocols.
- Q4. Understand OOPs concepts like classes, objects, inheritance, polymorphism, and abstraction.
chandrika gadaputi
I appeared for an interview in Dec 2024.
Numerical aptitude test, logical reasoning test, and technical aptitude test.
Case study GD, topic based GD,Role_play GD
(5 Questions)
- Q1. Can you tell me yourself ?
- Ans.
I am a software developer with 5 years of experience in Java, Python, and SQL.
5 years of experience in Java, Python, and SQL
Strong problem-solving skills
Experience working in Agile development environment
Familiarity with version control systems like Git
- Q2. How did you hear about this role?
- Ans.
I found this role through a job posting on LinkedIn.
Saw job posting on LinkedIn
Applied through company website
Referred by a friend who works at the company
- Q3. What are your long term career goals?
- Ans.
My long term career goal is to become a senior software architect and lead a team of developers to create innovative solutions.
Work towards gaining expertise in various programming languages and technologies
Take on leadership roles in projects to develop management and communication skills
Attend industry conferences and workshops to stay updated on latest trends and advancements
Seek opportunities for mentorship and pro...
- Q4. Do you have any questions for me ?
- Q5. What do you know about our company?
- Ans.
Your company is a leading software development firm specializing in creating innovative solutions for various industries.
Your company has a strong reputation for delivering high-quality software products.
You have a diverse portfolio of clients from different industries.
Your company values innovation and creativity in software development.
Your team is known for its expertise in cutting-edge technologies like AI and bloc...
(2 Questions)
- Q1. What is your favourite programming language?
- Ans.
My favorite programming language is Python because of its simplicity, readability, and versatility.
Python is known for its clean and readable syntax, making it easy to learn and understand.
Python has a large standard library with built-in modules for various tasks, reducing the need for external libraries.
Python is versatile and can be used for web development, data analysis, artificial intelligence, and more.
- Q2. Can you explain the concept of object oriented programming?
- Ans.
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
Objects are instances of classes, which define the structure and behavior of the objects.
Encapsulation is the concept of bundling data and methods that operate on the data within a single unit, such as a class.
Inheritance allows classes to inherit attribu...
Interview Preparation Tips
- General tropics
- Communication Skills
- Time Management
- Leadership Skills
Update your resume and online profiles
Research the company
Sri Nisha
Selected
I appeared for an interview in Dec 2024, where I was asked the following questions.
- Q1. What is sql
- Ans.
SQL (Structured Query Language) is a standard programming language for managing and manipulating relational databases.
SQL is used to perform tasks such as querying data, updating records, and managing database structures.
Common SQL commands include SELECT (to retrieve data), INSERT (to add new records), UPDATE (to modify existing records), and DELETE (to remove records).
Example of a SELECT statement: SELECT * FROM user...
- Q2. What is oops
- Ans.
Object-Oriented Programming (OOP) is a programming paradigm based on the concept of objects, which can contain data and code.
Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).
Inheritance: Mechanism to create a new class using properties and methods of an existing class (e.g., a 'Dog' class inheriting from an 'Animal' class).
Polymorphism: Ability to present the same interf...
- Q3. What is python
- Ans.
Python is a high-level, interpreted programming language known for its readability and versatility in various applications.
Easy to learn: Python's syntax is clear and intuitive, making it accessible for beginners. Example: print('Hello, World!')
Versatile: Used in web development, data analysis, artificial intelligence, scientific computing, and more.
Rich libraries: Python has a vast ecosystem of libraries like NumPy fo...
Interview Preparation Tips
Interview Preparation Tips
I appeared for an interview in Sep 2024.
An aptitude test evaluates an individual's potential to excel in a specific area by assessing their strengths and weaknesses in particular abilities.
An assessment that measures an individual's inherent abilities and potential for success in a specific activity.
A coding test is a programming assessment designed to evaluate a candidate's coding skills. It is a standard component of the technical hiring process for software developers and programmers.
Assessment that evaluates a candidate's coding skills
Group discussion (GD) topics for interviews may cover areas such as business, social issues, and current affairs. GDs serve to evaluate a candidate's communication, leadership, and teamwork abilities.
Discussion assignments are prompts that your teacher may assign to you. By participating in these discussions, you can reflect on your learning, share ideas and opinions, or ask and answer questions. Discussions may require you to respond to individual questions or provide multiple responses to an ongoing conversation.
Interview Preparation Tips
Research
Know your goals: Consider your values, strengths, and ideal work environment.
Research the company: Anticipate common interview questions.
Prepare your resume
Tailor your resume: Customize your resume for each job application.
Highlight your skills: Highlight how your skills and experience match the job description.
Use keywords: Use relevant keywords in your resume and cover letter.
Prepare for interviews
Prepare your answers: Use the STAR method to prepare your answers.
Research the company: Anticipate common interview questions.
Network
Expand your professional network: You may find that more people can recommend you to a new position.
Use your professional network: You can use your network for career advice.
Other tips Don't limit your search to online resources, Optimize your LinkedIn profile, Use several job-search websites, Keep your resume up-to-date, and Develop your interview skills.
20 min for 1 round of interview
(2 Questions)
- Q1. Opps concepts with uses
- Ans.
OOPs concepts are fundamental principles in object-oriented programming that help in organizing and managing code efficiently.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Allows a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementati...
- Q2. Multithreading and how to use it
- Ans.
Multithreading allows multiple threads to run concurrently, improving performance and responsiveness.
Multithreading is used to execute multiple tasks simultaneously within a single process.
It can improve performance by utilizing multiple CPU cores efficiently.
Common multithreading libraries include Java's Thread class and C#'s Task Parallel Library.
Example: In a web server, multithreading can handle multiple client req...
(2 Questions)
- Q1. Introduce yourself
- Ans.
I am a passionate software developer with experience in Java, Python, and web development.
Experienced in Java and Python programming languages
Skilled in web development using HTML, CSS, and JavaScript
Familiar with Agile development methodologies
- Q2. Dtrength and weaknesses
Skills evaluated in this interview
Roshan Yadav
(2 Questions)
- Q1. Tell me about yourself
- Ans.
I am a passionate software developer with experience in building web applications using various technologies.
Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular
Proficient in backend development with Node.js, Express, and MongoDB
Familiar with version control systems like Git and project management tools like Jira
- Q2. Explain your projects
- Ans.
I have worked on various projects including a web application for a retail company and a mobile app for a fitness tracker.
Developed a web application for a retail company to manage inventory and sales
Created a mobile app for a fitness tracker to track workouts and calories burned
Implemented RESTful APIs for communication between front-end and back-end systems
Reverse the number in the array
I applied via Walk-in and was interviewed in Nov 2024. There were 3 interview rounds.
Reverse string ,array sorting
(2 Questions)
- Q1. Why this company
- Ans.
I admire this company's innovative approach and commitment to excellence in software development, aligning with my career goals.
The company's focus on cutting-edge technology, like AI and machine learning, excites me as I want to work on impactful projects.
I appreciate the collaborative culture here, which fosters teamwork and creativity, evident in your recent successful product launch.
The emphasis on continuous learn...
- Q2. What do you know about this Company
(2 Questions)
- Q1. What c pointers
- Q2. What is strings
Interview Preparation Tips
Skills evaluated in this interview
(1 Question)
- Q1. Nodejs internal, how event loop works
Fibonacci code ,recursion and prime numbers.
(2 Questions)
- Q1. What are ds, explain types...
- Ans.
Data structures (DS) are ways to organize and store data for efficient access and modification.
1. Arrays: Fixed-size collections of elements, e.g., [1, 2, 3].
2. Linked Lists: Collections of nodes, each pointing to the next, e.g., 1 -> 2 -> 3.
3. Stacks: Last-in, first-out (LIFO) structure, e.g., function call stack.
4. Queues: First-in, first-out (FIFO) structure, e.g., print job queue.
5. Trees: Hierarchical struct...
- Q2. Na
Interview Preparation Tips
TCS Interview FAQs
Some of the top questions asked at the TCS Software Developer interview -
The duration of TCS Software Developer interview process can vary, but typically it takes about less than 2 weeks to complete.
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