TCS Senior Software Engineer Interview Questions and Answers

Angular is a powerful framework for building dynamic single-page applications (SPAs) using TypeScript.

• Angular provides a structured approach to building web applications, making it easier to manage complex UIs.

• It uses components to encapsulate functionality, promoting reusability and maintainability.

• Angular's two-way data binding ensures that changes in the UI reflect in the model and vice versa, enhancing user experie...read more

As a Senior Software Engineer, my day involves coding, collaboration, and continuous learning to deliver high-quality software.

• Daily stand-up meetings to discuss progress and blockers.

• Code reviews to ensure quality and share knowledge with the team.

• Collaborating with product managers to refine requirements and prioritize tasks.

• Writing and maintaining unit tests to ensure code reliability.

• Participating in sprint plannin...read more

Java 11 introduced new features like local-variable syntax for lambda parameters, HTTP client API, and more.

• Local-variable syntax for lambda parameters allows var to be used in lambda expressions.

• HTTP client API provides a standard API for making HTTP requests and handling responses.

• Nest-based access control enhances the security and maintainability of Java code.

• Flight recorder API enables Java Flight Recorder to be us...read more

Parameterised testing in JUnit allows running the same test with different inputs.

• Parameterised tests use @ParameterizedTest annotation in JUnit 5.

• Parameters are provided using @MethodSource or @CsvSource annotations.

• Each set of parameters is passed to the test method as arguments.

• Helps in testing multiple scenarios with a single test method.

• Example: @ParameterizedTest @ValueSource(ints = {1, 2, 3}) void test(int num) ...read more

Lambda function is an anonymous function used for short tasks. Threads allow for concurrent execution in a program.

• Lambda function is a concise way to define small functions without a name.

• Threads allow multiple tasks to run concurrently in a program.

• Lambda functions are often used in functional programming and for callbacks.

• Threads can improve performance by utilizing multiple cores of a CPU.

• Example of lambda function...read more

CI/CD stands for Continuous Integration/Continuous Deployment, a practice in software development to automate the process of testing and deploying code changes.

• CI/CD automates the process of integrating code changes from multiple developers into a shared repository.

• It includes automated testing to ensure that code changes do not break existing functionality.

• CI/CD also automates the deployment of code changes to product...read more

React Fiber is a complete rewrite of React's core algorithm for rendering UI components.

• React Fiber is designed to improve performance by allowing React to pause work and come back to it later.

• It enables features like async rendering, error boundaries, and more granular control over rendering priorities.

• Fiber reconciles the virtual DOM tree in a more incremental and interruptible way compared to the previous stack-base...read more

React portal is a feature in React that allows rendering a child component into a different part of the DOM tree.

• Used for rendering a child component outside of its parent component's DOM hierarchy

• Helps in creating modals, tooltips, and other UI elements that need to break out of the parent's styling

• Maintains the component's state and lifecycle methods even when rendered in a different part of the DOM

Synthetic events in React are cross-browser wrappers around the browser's native events, providing consistent behavior.

• Synthetic events are used in React to handle events in a consistent manner across different browsers.

• They are created by React to wrap native browser events and provide additional functionality.

• Synthetic events have the same interface as native browser events but are normalized to work consistently acr...read more