What is the main difference between SSL and TLS protocols in web services?
- SSL is for secure websites, and TLS is for non-secure websites
- SSL is newer than TLS and has more features
- TLS is the successor of SSL and provides better security
- There is no difference; they are used interchangeably
TLS is the successor to SSL and provides improvements in security. It's important to use TLS for secure data transmission in modern web services.
How does WSDL facilitate the interaction between different web services?
- By enabling user interface creation
- By executing server-side scripts
- By managing database connections
- By providing a standard way to describe the interface and communication protocols
WSDL (Web Services Description Language) facilitates interaction by providing a standardized way to describe the interface and communication protocols of web services. This allows for interoperability between different systems.
In terms of API versioning, how does GraphQL differ from REST?
- GraphQL typically doesn't require versioning
- GraphQL uses URL versioning
- REST automatically handles version updates
- REST uses HTTP headers for versioning
GraphQL typically doesn't require versioning due to its flexible schema and ability to request only the needed data.
In Docker, what is a 'Dockerfile' used for?
- Configuring container security policies
- Defining the structure and content of a container
- Managing Docker network configurations
- Storing container logs
A Dockerfile is used to define the structure and content of a Docker container, specifying the steps to build the container image.
For a web service that needs to securely exchange sensitive data with a SOAP-based system, what security implementation is most suitable?
- JWT (JSON Web Tokens)
- OAuth 2.0
- SSL/TLS (Secure Socket Layer/Transport Layer Security)
- WS-Security
WS-Security is a standard for securing SOAP-based web services. It provides a comprehensive set of specifications for securing message integrity, confidentiality, and authentication. When dealing with sensitive data exchange in SOAP, WS-Security is a suitable choice for robust security.
What is the significance of following a RESTful design pattern in web service development?
- High resource utilization
- Stateless communication
- Tight coupling between components
- XML-based communication
Following a RESTful design pattern in web service development is significant for achieving stateless communication, promoting scalability and simplicity.
When a financial service provider uses a web service, what key compliance factor should be evaluated?
- GDPR (General Data Protection Regulation)
- HIPAA (Health Insurance Portability and Accountability Act)
- PCI DSS (Payment Card Industry Data Security Standard)
- SOX (Sarbanes-Oxley Act)
Financial service providers using web services should prioritize compliance with PCI DSS to secure payment card data.
_______ is essential in a web service to ensure different versions of the service can coexist without disruption.
- Compression
- Encryption
- Scalability
- Versioning
Versioning is crucial in web services to allow different versions to coexist, ensuring backward compatibility and a smooth transition for clients.
When a web service experiences intermittent slowdowns, what aspect should be the focus of performance testing?
- Latency
- Reliability
- Scalability
- Throughput
Latency measures the time delay between the initiation and execution of a request. Addressing latency is crucial in resolving intermittent slowdowns.
What metric in performance testing measures the number of requests a service can handle per second?
- Concurrent Users
- Latency
- Response Time
- Throughput
Throughput in performance testing measures the number of requests a service can handle per second, providing insight into system capacity.
The approach where tests are written before the actual web service code is known as _______.
- Agile Development
- Behavior-Driven Development (BDD)
- Test-Driven Development (TDD)
- Waterfall Development
Test-Driven Development (TDD) is an approach where tests are written before writing the actual code, promoting a more testable and reliable codebase.
In SOAP, _______ is used to encode complex data types.
- JSON
- SOAP Encoding
- WSDL
- XML Schema
SOAP Encoding is a method used in SOAP to encode complex data types in a way that can be transmitted over the network, facilitating interoperability.