What status code is commonly returned by a RESTful API after successfully creating a resource?
- 200 OK
- 201 Created
- 204 No Content
- 400 Bad Request
The common status code returned by a RESTful API after successfully creating a resource is 201 Created. This status code indicates that the request has been fulfilled, resulting in the creation of a new resource as a result of the action performed by the POST request.
How does WSDL contribute to web services interoperability?
- Defines a standard for service description
- Facilitates data storage and retrieval
- Manages user authentication and authorization
- Optimizes network bandwidth
WSDL contributes to web services interoperability by defining a standard for service description. It allows different systems to understand the functionalities offered by a web service, promoting seamless communication and integration across diverse platforms.
In designing a REST API for a library system, what HTTP method should be used to add new books to the system?
- INSERT
- PATCH
- POST
- PUT
When adding new resources to a system in a REST API, the appropriate HTTP method is POST. POST is used to submit data to be processed to a specified resource and is commonly employed for creating new resources, such as adding new books to a library system.
How does JWT ensure the integrity of messages?
- By adding a timestamp to each message
- By compressing the message payload
- By encrypting the entire message
- By including a digital signature
JWT ensures message integrity by including a digital signature, allowing recipients to verify that the message has not been tampered with.
In SOAP, the format of the request and response messages is governed by the _______.
- HTML
- JSON
- XML
- YAML
In SOAP, the format of the request and response messages is governed by the XML (eXtensible Markup Language) format.
In terms of database security, what is the primary purpose of using prepared statements?
- Enhanced data encryption
- Improved data indexing
- Optimization of queries
- Prevention of SQL Injection
Prepared statements help prevent SQL Injection attacks by separating SQL code from user input, making it more secure.
In advanced SOA, _______ is used for dynamic service discovery and binding.
- REST
- SOAP
- UDDI
- XML-RPC
In advanced SOA, UDDI (Universal Description, Discovery, and Integration) is used for dynamic service discovery and binding. UDDI provides a standardized way to publish and discover services, allowing applications to dynamically find and interact with services based on their descriptions and capabilities.
To handle large-scale traffic efficiently, API Gateways implement _______ mechanisms.
- Authentication
- Caching
- Load balancing
- Rate limiting
API Gateways use load balancing mechanisms to distribute incoming traffic across multiple servers, ensuring efficient handling of large-scale requests.
How can an API Gateway be used to facilitate the transition from monolithic to microservices architecture?
- Implement a single point of failure
- Provide a monolithic interface to microservices
- Restrict access to microservices
- Route requests to specific microservices, easing the transition
An API Gateway can help by routing requests to specific microservices, making the transition from monolithic to microservices architecture smoother.
_______ is a key standard in defining how web services communicate in a platform-independent manner.
- JSON (JavaScript Object Notation)
- REST (Representational State Transfer)
- SOAP (Simple Object Access Protocol)
- XML (eXtensible Markup Language)
XML is a key standard in defining how web services communicate in a platform-independent manner. It provides a structured format for data exchange between applications, promoting interoperability and flexibility in web service communication.
What is the difference between OAuth and OAuth2 in terms of authorization?
- OAuth and OAuth2 are interchangeable terms with no significant differences
- OAuth is an older version of OAuth2 and is no longer in use
- OAuth2 is an updated version of OAuth with improved security and additional features
- OAuth2 is used for authentication, while OAuth is used for authorization
OAuth2 is an evolution of OAuth, introducing improvements and addressing security concerns in the authorization process.
In the context of web services, what does simulation testing primarily aim to evaluate?
- Database performance
- Interaction between components in a simulated environment
- Network speed
- User interface responsiveness
Simulation testing in web services primarily evaluates the interaction between components in a simulated environment, ensuring proper functioning in realistic scenarios.