TCS Software Engineer Interview Questions, Process, and Tips for Experienced

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Q1. Spring and Java Related Questions
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Q2. Spring and Java Related Questions
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Q1. HR questions like why leaving your current org.
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Q2. HR questions like why leaving your current org
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Intermediate question

Q1. They are asking basic understanding of code and logic.
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Q1. Asking HR related questions
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Q1. 1. Basic Java OOPS concepts
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Q2. Multi threading, Collections, etc
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Q3. Spring Boot, Annotations, IOC DI
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Q1. Microservices and its use
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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
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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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Q1. Diff between Scoped and Transient DI
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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
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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
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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
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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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