IBM Interview Questions, Process, and Tips for Experienced

Spring Boot is a popular Java framework for building microservices and web applications.

• Provides a quick and easy way to set up a new project with minimal configuration

• Offers a wide range of pre-built features and integrations

• Supports multiple data sources and web protocols

• Enables easy deployment and scaling of applications

• Example: Spring Boot can be used to build a RESTful API for a web application

• Example: Spring Boot...read more

Spring Security is used for authentication and authorization in the application.

• Spring Security provides a framework for securing web applications.

• It uses various authentication and authorization mechanisms such as form-based, basic, and OAuth2.

• In our application, we have used form-based authentication with user credentials stored in a database.

• We have also implemented role-based authorization to restrict access to cer...read more

Global exception handling in Spring Framework allows for centralized error handling and logging.

• Spring provides a @ControllerAdvice annotation to define global exception handling

• Exception handling can be customized based on the type of exception thrown

• Logging can be implemented using AOP and Spring's @Around advice

• Example: @ControllerAdvice class with @ExceptionHandler methods for specific exceptions

• Example: AOP loggin

CI-CD flow is implemented in our project for continuous integration and delivery of software.

• We use Jenkins as our CI/CD tool.

• Our code is stored in Git repository and is automatically built and tested on every commit.

• We have multiple environments for testing and deployment, including staging and production.

• We use Docker containers for easy deployment and scalability.

• Our CI/CD pipeline includes automated testing, code a...read more

The server being used is WebLogic and the version is not specified. Data source can be configured through the console or configuration files.

• WebLogic server is being used

• Version is not specified

• Data source can be configured through console or configuration files

Profiling in Spring is a technique to analyze and optimize the performance of an application.

• Profiling helps identify performance bottlenecks in the application.

• Spring provides support for profiling through its integration with popular profiling tools like JProfiler and YourKit.

• Profiling can be done on various components of the Spring application, including controllers, services, and repositories.

• Profiling can also hel...read more

Microservices offer scalability, flexibility, and faster deployment.

• Microservices allow for independent deployment and scaling of individual components

• They enable faster development and deployment cycles

• They promote flexibility and agility in software development

• Examples include Netflix, Amazon, and Uber