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Document verification ensures authenticity and accuracy of documents through various methods and technologies.
Use of digital signatures to verify the integrity of documents.
Optical Character Recognition (OCR) can extract text from scanned documents for validation.
Cross-referencing with official databases to confirm document legitimacy.
Implementing blockchain technology for secure and tamper-proof document storage.
...
Code a function to reverse a string in Python
Use the built-in function '[::-1]' to reverse the string
Alternatively, you can use a loop to iterate through the string in reverse order
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
Joins are used to retrieve data from multiple tables based on a related column.
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
INNER JOIN returns rows when there is at least one match in both tables.
LEFT JOIN returns all rows from the left table and the matched rows from the right table.
RIGH...
Enum class is a strongly-typed class that defines a set of named constants.
Enum class is introduced in C++11 to provide type-safe enums.
It allows defining a set of named constants that can be used as values.
Each constant in an enum class is treated as a separate type, preventing type mismatches.
Example: enum class Color { RED, GREEN, BLUE };
Example: Color c = Color::RED;
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Circular linked list is a linked list where the last node points back to the first node, forming a circle.
Allows for efficient traversal from the end of the list to the beginning
Useful for applications where data needs to be accessed in a circular manner, such as round-robin scheduling
Can be used to implement a circular buffer in data structures
A class is a blueprint for creating objects in object-oriented programming. An object is an instance of a class.
A class defines the properties and behaviors of objects.
An object is a specific instance of a class.
Classes can be thought of as templates, while objects are the actual instances created from those templates.
Example: Class 'Car' may have properties like 'color' and 'model', while an object of class 'Car'...
Java Virtual Machine (JVM) is a virtual machine that enables a computer to run Java programs.
JVM is responsible for converting Java bytecode into machine code that can be executed by the computer's processor.
It provides a layer of abstraction between the Java application and the underlying hardware.
JVM is platform-independent, allowing Java programs to run on any device that has a JVM implementation.
Examples of JV...
TCS BaNCS, TCS MasterCraft, TCS iON, TCS Digital Software & Solutions, TCS Optumera
TCS BaNCS - a suite of banking solutions
TCS MasterCraft - a suite of software engineering tools
TCS iON - a cloud-based ERP solution for SMBs
TCS Digital Software & Solutions - digital transformation services
TCS Optumera - a retail optimization solution
Reverse the strings in an array of strings
Iterate through the array of strings
For each string, reverse the characters
Return the array with reversed strings
Security is implemented in our application through encryption, authentication, and authorization mechanisms.
We use encryption algorithms to secure sensitive data both at rest and in transit.
Authentication is implemented through secure login mechanisms like OAuth or JWT.
Authorization controls access to different parts of the application based on user roles and permissions.
I appeared for an interview in Jul 2025, where I was asked the following questions.
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...
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
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
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
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...
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...
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.
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...
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.
I appeared for an interview in May 2025, where I was asked the following questions.
20 min for 1 round of interview
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...
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
I appeared for an interview in Jun 2025, where I was asked the following questions.
PCA, or Principal Component Analysis, is a dimensionality reduction technique used to simplify datasets while preserving variance.
PCA transforms data into a new coordinate system, where the greatest variance lies on the first axis.
It helps in reducing the number of features while retaining the essential information, making it easier to visualize data.
For example, in image processing, PCA can reduce the number of pixels...
I appeared for an interview in Jun 2025, where I was asked the following questions.
In five years, I see myself as a lead developer, mentoring others and driving innovative projects that impact the industry.
I aim to lead a team of developers, guiding them through complex projects and fostering a collaborative environment.
I plan to deepen my expertise in emerging technologies, such as AI and machine learning, to contribute to cutting-edge solutions.
I envision myself taking on more responsibilities, pos...
I excel in problem-solving and teamwork, but I sometimes struggle with time management under tight deadlines.
Strength: Strong problem-solving skills - I enjoy tackling complex coding challenges, like optimizing algorithms for better performance.
Strength: Effective teamwork - I thrive in collaborative environments, having successfully led a project with cross-functional teams.
Weakness: Time management - I occasionally u...
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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