How do you access the data sent in the request body of a POST request in a Spring Boot controller method?
- Using the @RequestParam annotation.
- By retrieving it from the HttpServletRequest object.
- By declaring a method parameter annotated with @RequestBody.
- It is automatically available as a method argument.
To access the data sent in the request body of a POST request in a Spring Boot controller method, you should declare a method parameter and annotate it with @RequestBody. This annotation tells Spring to deserialize the request body data into the specified object or data type. The other options, such as @RequestParam and retrieving it from HttpServletRequest, are used for different scenarios and do not directly handle the request body of a POST request.
How do you configure a cache manager in Spring Boot?
- By adding the @Cacheable annotation to methods that should be cached.
- By modifying the 'application.properties' file with cache settings.
- By creating a custom caching class and injecting it into services.
- By disabling caching entirely in the Spring Boot application.
In Spring Boot, cache manager configuration is typically done by modifying the 'application.properties' file with cache-related settings. Spring Boot provides easy-to-use properties for configuring popular caching solutions like EhCache, Caffeine, and more. The other options are not the standard way to configure a cache manager in Spring Boot.
How can you encrypt and decrypt property values in Spring Boot to secure sensitive information?
- By using the @EncryptProperty annotation.
- By configuring property encryption in application.properties.
- By using the spring.security module for encryption.
- By using the Jasypt library and configuring it in application.properties.
To encrypt and decrypt property values in Spring Boot, you can use the Jasypt library and configure it in the application.properties file. This library provides a straightforward way to secure sensitive information such as database passwords. While there are other security-related options in Spring Boot, the Jasypt library is commonly used for property encryption.
For web services communication, SOAP relies on _______ for message format validation.
- JSON
- REST
- WSDL
- XML Schema
SOAP uses XML Schema for message format validation, ensuring that the structure and content of messages conform to a predefined schema.
What distinguishes Microservices Architecture from traditional SOA?
- Centralized data storage
- Granular and independent services
- Monolithic and tightly coupled services
- Standardized communication protocols
Microservices Architecture is characterized by granular and independent services, each responsible for a specific business capability. This contrasts with traditional SOA, which often involves monolithic and tightly coupled services.
What is the primary purpose of Web Services Interoperability?
- Designing user interfaces
- Ensuring security
- Facilitating communication between
- Managing databases
Web Services Interoperability aims to facilitate communication between different applications and systems. It ensures seamless integration by enabling diverse software to work together effectively, irrespective of their underlying technologies and platforms.
API Gateways often use _______ to ensure that requests are only served to authenticated and authorized users.
- API keys
- JSON
- OAuth
- Tokens
API Gateways often use OAuth to ensure that requests are only served to authenticated and authorized users.
_______ is a technique used to simulate real user interactions with a web service during testing.
- Automation Testing
- Load Testing
- Regression Testing
- Stress Testing
Automation testing involves using tools to simulate real user interactions, ensuring efficient testing of web services.
How does AWS Lambda fundamentally change the way computing resources are used?
- Free tier with limited usage
- Hourly billing model
- Monthly subscription model
- Pay-per-execution model
AWS Lambda introduces a pay-per-execution model, allowing users to pay only for the compute time consumed by their functions.
For a service that provides access to third-party applications, what authorization mechanism would ensure secure and limited access?
- API Key Authorization
- OAuth 2.0
- Role-Based Access Control (RBAC)
- SAML (Security Assertion Markup Language)
OAuth 2.0 is commonly used for authorization in scenarios where secure and limited access is required, especially for third-party applications.