Spring Framework

What is inter-service communication in microservices architecture?

What is inter-service communication in microservices architecture? A) Communication between different microservices B) Communication between microservices and databases C) Communication between client applications and microservices D) Communication between microservices and the cloud provider Answer: A) Communication between different microservices Explanation: Inter-service communication refers to the communication that occurs between different microservices within a microservices architecture. […]

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What is the purpose of circuit breakers in microservices?

What is the purpose of circuit breakers in microservices? A) To prevent cascading failures by stopping requests to a failing service B) To load balance requests across services C) To cache responses from microservices D) To manage service discovery Answer: A) To prevent cascading failures by stopping requests to a failing service Explanation: Circuit breakers

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What role does the API Gateway play in a microservices architecture?

What role does the API Gateway play in a microservices architecture? A) It acts as an entry point for all client requests, routing them to the appropriate services B) It manages database transactions across services C) It serves as a data storage solution for microservices D) It handles logging and monitoring of microservices Answer: A)

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What is service discovery in microservices architecture?

What is service discovery in microservices architecture? A) A process where microservices find each other dynamically B) A technique to store microservices in a database C) A method to monitor microservices D) A way to scale microservices Answer: A) A process where microservices find each other dynamically Explanation: Service discovery is a key concept in

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What is the main benefit of using microservices over a monolithic architecture?

What is the main benefit of using microservices over a monolithic architecture? A) Microservices allow for independent scaling and deployment of services B) Microservices require less code C) Microservices are easier to develop D) Microservices eliminate the need for databases Answer: A) Microservices allow for independent scaling and deployment of services Explanation: The main benefit

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What is a microservice in the context of software architecture?

What is a microservice in the context of software architecture? A) A small, independently deployable service that performs a specific business function B) A single, large monolithic application C) A database schema D) A user interface module Answer: A) A small, independently deployable service that performs a specific business function Explanation: Microservices are a software

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What is Spring Cloud Sleuth used for in microservices?

What is Spring Cloud Sleuth used for in microservices? A) Distributed tracing of requests across services B) Load balancing of microservices C) Managing security policies D) Centralized logging Answer: A) Distributed tracing of requests across services Explanation: Spring Cloud Sleuth is used for distributed tracing in microservices architectures. It adds trace and span IDs to

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What is the role of Spring Cloud Bus?

What is the role of Spring Cloud Bus? A) To propagate configuration changes across microservices B) To handle inter-service communication C) To manage load balancing between services D) To provide distributed caching Answer: A) To propagate configuration changes across microservices Explanation: Spring Cloud Bus is used to propagate configuration changes across microservices in a distributed

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How does Spring Cloud Ribbon help in microservices architecture?

How does Spring Cloud Ribbon help in microservices architecture? A) By providing client-side load balancing B) By managing distributed transactions C) By implementing security policies D) By providing centralized logging Answer: A) By providing client-side load balancing Explanation: Spring Cloud Ribbon provides client-side load balancing, which is crucial in microservices architectures where multiple instances of

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What is the role of Spring Cloud Sleuth?

What is the role of Spring Cloud Sleuth? A) To provide distributed tracing in microservices B) To configure load balancing C) To manage API rate limiting D) To handle asynchronous messaging Answer: A) To provide distributed tracing in microservices Explanation: Spring Cloud Sleuth provides distributed tracing capabilities in a microservices architecture. It adds unique identifiers

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What does Spring Cloud Hystrix provide?

What does Spring Cloud Hystrix provide? A) Circuit breaker functionality for fault tolerance B) A tool for service discovery C) A configuration management solution D) A load balancer for microservices Answer: A) Circuit breaker functionality for fault tolerance Explanation: Spring Cloud Hystrix provides circuit breaker functionality, which is essential for fault tolerance in microservices architectures.

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What is the purpose of Spring Cloud Config?

What is the purpose of Spring Cloud Config? A) To manage distributed system configurations centrally B) To store user credentials securely C) To deploy microservices D) To monitor microservices health Answer: A) To manage distributed system configurations centrally Explanation: Spring Cloud Config is a configuration management tool designed to manage the configuration of applications across

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What is Spring Cloud used for in microservices architecture?

What is Spring Cloud used for in microservices architecture? A) To build and manage distributed systems B) To handle database transactions C) To implement MVC architecture D) To provide caching mechanisms Answer: A) To build and manage distributed systems Explanation: Spring Cloud is a suite of tools specifically designed for building and managing distributed systems,

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How do you configure a JPA entity to automatically generate its primary key value?

How do you configure a JPA entity to automatically generate its primary key value? A) By using the @Id and @GeneratedValue annotations B) By using the @PrimaryKey and @AutoGenerate annotations C) By using the @Table and @GeneratedKey annotations D) By using the @PrimaryKey and @Sequence annotations Answer: A) By using the @Id and @GeneratedValue annotations

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What is the purpose of the @ManyToMany annotation in JPA?

What is the purpose of the @ManyToMany annotation in JPA? A) To map a many-to-many relationship between entities B) To map a one-to-one relationship between entities C) To configure database caching D) To define a foreign key relationship Answer: A) To map a many-to-many relationship between entities Explanation: The @ManyToMany annotation in JPA is used

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How do you perform pagination and sorting with Spring Data JPA?

How do you perform pagination and sorting with Spring Data JPA? A) By using the Pageable and Sort interfaces B) By writing custom SQL queries C) By using the @Query annotation D) By using the @Pageable annotation Answer: A) By using the Pageable and Sort interfaces Explanation: Spring Data JPA provides built-in support for pagination

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