RESTful services are designed around _______ that can be manipulated using a standard interface.
- Endpoints
- Middleware
- Procedures
- Resources
RESTful services revolve around resources, which are entities that can be identified, named, and manipulated using standard methods, promoting a resource-centric design.
To ensure data integrity and confidentiality, web services often use _________ encryption.
- RC4 (Rivest Cipher 4)
- RSA (Rivest-Shamir-Adleman)
- SHA-256 (Secure Hash Algorithm 256-bit)
- SSL/TLS (Secure Sockets Layer/Transport Layer Security)
SSL/TLS is commonly used to secure data during transmission in web services, providing both integrity and confidentiality.
To achieve isolation in unit tests, it's essential to handle _______ appropriately.
- Authentication
- Caching
- Database transactions
- Mock objects
Using mock objects appropriately is crucial for achieving isolation in unit tests.
How does GraphQL improve performance compared to RESTful services?
- Implementing stateful communication
- Increasing the use of multiple endpoints
- Introducing more complex data structures
- Reducing over-fetching and under-fetching of data
GraphQL improves performance by allowing clients to request only the data they need, reducing over-fetching and under-fetching.
How does caching impact the performance of web services?
- It degrades performance by increasing latency
- It has no impact on performance
- It improves performance by storing frequently accessed data
- It is only useful for small-scale applications
Caching in web services can significantly improve performance by storing and serving frequently accessed data without the need for repeated processing.
When integrating a SOAP service with a legacy system, what aspect is crucial for compatibility?
- Data Format Transformation
- Protocol Compatibility
- Security Considerations
- Versioning Strategies
Protocol compatibility is crucial when integrating a SOAP service with a legacy system. Ensuring that the communication protocols align between the SOAP service and the legacy system is essential for seamless data exchange and interoperability, allowing the two systems to work together effectively.
What is the significance of service virtualization in a distributed web services architecture?
- Accelerating data transmission
- Emulating unavailable components
- Enabling offline data storage
- Improving server security
Service virtualization is significant in a distributed web services architecture as it allows emulating unavailable components, ensuring thorough testing and development even when certain services are inaccessible.
When debugging a distributed system, what strategy is most effective for tracing issues?
- Code Review
- Distributed Tracing
- Log Analysis
- Unit Testing
Distributed tracing is an effective strategy for debugging in a distributed system, as it allows tracing the flow of requests across multiple services.
The _______ in RESTful services describes the desired state transition of a resource.
- Hypermedia Controls
- Resource Representation
- Resource State Model
- State Transition Model
The hypermedia controls in RESTful services, often achieved through HATEOAS (Hypermedia as the Engine of Application State), describe the desired state transition of a resource by providing links and actions.
Microservices often rely on _______ to automate the deployment and scaling of containers.
- Configuration Management
- Container Orchestration
- Microservices Framework
- Virtual Machines
Microservices often rely on Container Orchestration tools, such as Kubernetes, to automate the deployment and scaling of containers.
How does Kubernetes differ from Docker in terms of container orchestration?
- Docker doesn't support container orchestration
- Docker is for development, and Kubernetes is for production
- Kubernetes is an orchestration platform, while Docker is a containerization platform
- Kubernetes is only suitable for small-scale applications
Kubernetes is primarily an orchestration platform that manages and scales containerized applications. Docker, on the other hand, is a platform for containerization.
Compliance with _______ is crucial for web services dealing with payment card information.
- GDPR
- HIPAA
- PCI DSS
- SOX
Compliance with PCI DSS (Payment Card Industry Data Security Standard) is crucial for web services dealing with payment card information.