Ratna Global Technologies Java Architect Interview Questions, Process, and Tips

REST API is a standard for building web APIs, while Kafka is a distributed streaming platform. REST is used for synchronous communication, while Kafka is used for asynchronous communication.

• REST API is used for building web APIs that follow the REST architectural style, allowing clients to interact with servers over HTTP. It is typically used for synchronous communication.

• Kafka is a distributed streaming platform that ...read more

Springboot annotations are used to simplify the development process by providing metadata to the Spring framework.

• Annotations like @RestController, @RequestMapping, @Autowired, @Component are commonly used in Springboot.

• These annotations help in defining the behavior of the application, mapping endpoints, injecting dependencies, and creating beans.

• For example, @RestController is used to define a controller class, @Requ...read more

Database performance and scaling can be improved by optimizing queries, indexing, caching, partitioning, and using sharding.

• Optimize queries by avoiding unnecessary joins, using proper indexes, and limiting the data returned

• Use indexing to speed up data retrieval by creating indexes on columns frequently used in queries

• Implement caching to store frequently accessed data in memory for faster retrieval

• Partitioning can he...read more

Our project uses a modern tech stack including Java, Spring Boot, Angular, and MySQL for efficient development and scalability.

• Java and Spring Boot chosen for their robustness, scalability, and community support.

• Angular selected for its ability to create dynamic and interactive user interfaces.

• MySQL used for its reliability and performance in handling large amounts of data.

GraphQL vs REST comparison in terms of advantages and limitations

• GraphQL allows clients to request only the data they need, reducing over-fetching and under-fetching

• REST is simpler to understand and implement for basic CRUD operations

• GraphQL has a strong type system which helps in avoiding errors during development

• REST has better caching mechanisms due to its statelessness

• GraphQL can lead to complex queries and potenti...read more

No, POST method is used to create new data, not retrieve existing data in REST API.

• POST method is used to create new data in REST API

• GET method is used to retrieve existing data in REST API

• Other HTTP methods like PUT, PATCH, DELETE have different purposes in REST API