GraphQL uses a _______ to execute and deliver data to the client.
- Command
- Query
- Request
- Transaction
GraphQL uses a query to define the data requirements and execute requests to retrieve the necessary data.
In performance testing, what does the term 'latency' refer to?
- The amount of data that can be processed simultaneously
- The delay between sending a request and receiving the response
- The number of concurrent users
- The speed of data transmission
Latency in performance testing refers to the delay between sending a request and receiving the corresponding response, measuring the time taken for data to travel between points.
How does unit testing contribute to the continuous integration process of web services?
- By increasing the likelihood of bugs in production
- By providing rapid feedback on code changes
- By skipping the testing phase
- By slowing down the integration process
Unit testing contributes to continuous integration by providing rapid feedback on code changes, helping catch issues early in the development process.
In SOA, _______ is a common approach for integrating heterogeneous systems.
- Enterprise Service Bus (ESB)
- Representational State Transfer (REST)
- Service-Oriented Architecture
- Web Service Description Language (WSDL)
In Service-Oriented Architecture (SOA), the Enterprise Service Bus (ESB) is a common approach for integrating heterogeneous systems. The ESB facilitates communication and integration between different services and applications in a loosely coupled manner.
Which HTTP method is commonly used for creating resources in REST?
- DELETE
- GET
- POST
- PUT
The HTTP method commonly used for creating resources in REST is POST. It is used to submit data to be processed to a specified resource.
In WSDL, the term 'binding' refers to what?
- The association between the abstract interface and a concrete protocol
- The definition of complex data types
- The process of connecting to a database
- The specification of user interfaces
In WSDL, 'binding' refers to the association between the abstract interface and a concrete protocol. It defines how the web service will be accessed over the network.
What is the role of a namespace in XML-based web service versioning?
- Avoid naming conflicts in different versions
- Enhance security in web service communication
- Provide a unique identifier to each version
- Simplify XML document structure
A namespace in XML-based web service versioning plays a crucial role in avoiding naming conflicts between different versions, ensuring clarity and preventing ambiguity.
Which protocol is specifically designed for message security in SOAP web services?
- HTTPS
- SAML
- SOAP
- WS-Security
WS-Security is specifically designed for message security in SOAP web services. It provides a comprehensive set of specifications for securing the content of SOAP messages, including encryption, digital signatures, and authentication. WS-Security ensures that the communication between SOAP-based web services is secure and protected from unauthorized access.
What is the primary goal of integration testing in web services?
- To ensure the security of the web service
- To test the user interface of the web service
- To validate the interaction between integrated components
- To verify that the individual units of code work correctly
Integration testing in web services primarily focuses on verifying the interaction between integrated components to ensure the smooth functioning of the system.
Which of these is not a typical approach to handling errors in RESTful services?
- Handling errors through HTTP headers
- Redirecting to a generic error page
- Returning detailed error messages in response
- Using appropriate HTTP status codes
Redirecting to a generic error page is not a typical approach to handling errors in RESTful services.