Data Access and Persistence (24%): Database Transactions and Connection Management, Spring Data JPA/Repository, Spring JDBC Template, Native Query Execution, Spring Batch

Web Development and Integration (24%): RESTful Web Services, Spring MVC, Web Sockets, Spring WebFlux, Spring Security

Cloud Platforms and Applications (16%): Spring Cloud Connectors, Spring Cloud Data Flow, Spring Cloud Stream, Spring Cloud Netflix, Spring Cloud Sleuth

Enterprise Integration (9%): Enterprise Integration Patterns (EIP), Apache Camel, Mule ESB, Spring Integration, Spring XD

Option B: Request scope, which creates a new instance per HTTP request

Option C: Singleton scope, which creates a single shared instance per Spring IoC container

Option D: Session scope, which scopes a bean to an HTTP session

Option E: Application scope, which scopes a bean to a ServletContext

Option F: GlobalSession scope, which is used exclusively for portlet-based applications

Correct Answer: Option C

Overall Explanation: In Spring, the container creates exactly one instance of the object defined by that bean definition, This single instance is stored in a cache of such singleton beans, and all subsequent requests and references for that named bean return the cached object,

Option A Explanation: Incorrect, because prototype creates a new instance every time, but it is not the default scope,

Option B Explanation: Incorrect, because request scope is only valid in the context of a web-aware ApplicationContext and is not the default,

Option C Explanation: Correct, as singleton is the default scope for all beans defined in Spring,

Option D Explanation: Incorrect, because session scope is specific to web environments and is not the global default,

Option E Explanation: Incorrect, because application scope is tied to the ServletContext, not the default for standard containers,

Option F Explanation: Incorrect, because GlobalSession is obsolete and tied to portlets, not the default,

Question 2: When using Spring Data JPA, how do you typically define a repository for an entity named Employee?

Option B: By extending the JpaRepository interface and letting Spring provide the implementation at runtime

Option C: By creating an abstract class annotated with the Repository definition

Option D: By manually writing JDBC templates within a standard Java interface

Option E: By configuring an XML file that maps the Employee entity to database tables

Option F: By utilizing the Spring Batch framework to process Employee records

Correct Answer: Option B

Overall Explanation: Spring Data JPA drastically reduces the amount of boilerplate code required to implement data access layers, Developers only need to declare repository interfaces, and Spring Data JPA provides the implementation automatically,

Option A Explanation: Incorrect, because you do not manually implement the class, Spring provides a proxy implementation dynamically,

Option B Explanation: Correct, extending interfaces like JpaRepository or CrudRepository allows Spring to generate the data access logic at runtime,

Option C Explanation: Incorrect, creating an abstract class defeats the purpose of Spring Data's automatic interface implementation,

Option D Explanation: Incorrect, while Spring JDBC templates are valid for Data Access, they are not the typical or standard way to define a Spring Data JPA repository,

Option E Explanation: Incorrect, XML mapping is an older Hibernate approach and not how a Spring Data repository interface is defined,

Option F Explanation: Incorrect, Spring Batch is used for bulk processing, not for standard entity repository definitions,

Question 3: In a Spring MVC application, what is the exact function of the RestController annotation?

Option B: It defines a standard Spring MVC controller that returns HTML views via a ViewResolver

Option C: It configures the application to use Spring WebFlux for reactive programming

Option D: It automatically secures the REST endpoints using Spring Security defaults

Option E: It registers the class as a Spring Cloud component for service discovery

Option F: It establishes a WebSocket connection for real-time bidirectional communication

Correct Answer: Option A

Overall Explanation: The RestController annotation was introduced to simplify the creation of RESTful web services, It is a convenience annotation that automatically applies the ResponseBody behavior to all handler methods within the class,

Option A Explanation: Correct, it merges Controller and ResponseBody so you do not have to annotate every single method with ResponseBody,

Option B Explanation: Incorrect, returning HTML views via a ViewResolver is the job of the standard Controller annotation, not RestController,

Option C Explanation: Incorrect, while you can use RestController in WebFlux, the annotation itself does not configure reactive programming,

Option D Explanation: Incorrect, securing endpoints is handled by Spring Security configurations, not the controller annotation itself,

Option E Explanation: Incorrect, Spring Cloud service discovery relies on annotations like EnableDiscoveryClient, not RestController,

Option F Explanation: Incorrect, WebSockets use entirely different configurations and handlers, not the RestController annotation,

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