TCS Software Engineer Interview Questions, Process, and Tips

Q1. Microservices and its use
Ans. 
Microservices are a software architecture design where applications are broken down into smaller, independent services that communicate with each other through APIs.
• Microservices allow for easier scalability and maintenance of complex applications.

• Each microservice can be developed, deployed, and scaled independently.

• Microservices promote flexibility and agility in software development.

• Examples of companies using micro
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Q2. Hibernate concepts used in projects
Ans. 
Hibernate is used for ORM mapping in projects to interact with databases.
• Mapping Java classes to database tables

• Managing database connections

• Performing CRUD operations

• Implementing caching mechanisms

• Supporting transactions
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ASKED QUESTION ABOUT MY PREVIOUS INTERNSHIP

ASKED TO CODE HELLO WORLD

Q1. INTRODUCE YOURSELF.
Ans. 
I am a passionate software engineer with experience in developing 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 and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Docker
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Q2. WHY SHOULD WE HIRE YOU ?
Ans. 
I have a strong technical background, problem-solving skills, and a passion for software development.
• Extensive experience in programming languages such as Java, Python, and C++

• Proven track record of delivering high-quality software solutions on time

• Strong analytical and problem-solving skills demonstrated through successful projects

• Passionate about staying up-to-date with the latest technologies and trends in software
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Q1. What are the steps to add a number at the end of a linked list?
Ans. 
To add a number at the end of a linked list, you need to traverse the list to the last node and then create a new node with the number and link it to the last node.
• Traverse the linked list to the last node

• Create a new node with the number

• Link the new node to the last node's next pointer
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Q2. Arrange the array in ansecending order
Ans. 
Sort the array of strings in ascending order.
• Use a sorting algorithm like bubble sort, selection sort, or merge sort.

• Convert the strings to lowercase before sorting to ensure case-insensitive sorting.

• Consider using built-in sorting functions in programming languages like sort() in JavaScript.
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Q1. Diff between Scoped and Transient DI
Ans. 
Scoped DI creates a single instance per scope, while Transient DI creates a new instance every time it is requested.
• Scoped DI creates a single instance per scope, while Transient DI creates a new instance every time it is requested.

• Scoped DI is useful for sharing a single instance within a scope, like a request or session, while Transient DI is useful for creating new instances each time.

• Scoped DI can improve performan...read more
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Q2. What is Middleware
Ans. 
Middleware is software that acts as a bridge between different applications or components, allowing them to communicate and work together.
• Middleware facilitates communication between different software applications or components

• It can handle tasks such as data transformation, security, and routing

• Examples include message brokers like RabbitMQ, web servers like Apache Tomcat, and API gateways like Kong
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Q3. How to achieve Lazy Loading in Angular
Ans. 
Lazy loading in Angular is achieved by using loadChildren in the route configuration to load modules on demand.
• Use loadChildren in the route configuration to load modules lazily

• Split your application into feature modules

• Lazy loading helps in reducing the initial bundle size and improving performance
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Q4. Authgaurd in Angular
Ans. 
AuthGuard in Angular is used to control access to certain routes based on user authentication status.
• AuthGuard is a service in Angular that implements CanActivate interface to determine if a route can be activated.

• It can be used to restrict access to certain routes for authenticated users only.

• AuthGuard can redirect unauthenticated users to a login page or show an error message.

• Example: canActivate: [AuthGuard] in rout
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Q5. Handle routing in Angular
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Angular routing is handled using RouterModule which provides a way to navigate between different components.
• Use RouterModule.forRoot() method in app.module.ts to set up the main routes

• Use RouterModule.forChild() method in feature modules to define routes specific to that module

• Define routes using Route interface with path and component properties

• Use routerLink directive in HTML templates to navigate to different routes

• ...read more
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Q1. Based on projects
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Q2. Oops questions , solid principles
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Q1. Design patterns questions
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Q2. React questions
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Q1. Introduce yourself
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Q2. .net core concepts like authentication process, middleware, authorize filter attribute
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Q3. Sql concepts, stored procedures, transactions, CTE
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