Which security consideration is most critical when implementing OAuth in a web service?
- Allowing unlimited token validity periods
- Properly validating and securing access tokens
- Storing user credentials in plaintext
- Using plaintext for token transmission
The most critical security consideration in implementing OAuth is properly validating and securing access tokens. Access tokens are a key component in OAuth, and ensuring their integrity and validity is crucial for preventing unauthorized access. This involves token validation, protection against token leakage, and secure handling of tokens throughout the authentication process.
_______ is used in web services to describe the data structure in a detailed manner.
- HTML
- JSON
- XML
- YAML
XML is commonly used in web services to describe the data structure in a detailed and standardized manner, facilitating data interchange between systems.
In a scenario where a web service handles sensitive data, what TLS feature should be prioritized to prevent data breaches?
- Heartbeat Extension
- Perfect Forward Secrecy
- SSLv2 Compatibility
- Session Resumption
Prioritize Perfect Forward Secrecy (PFS) to ensure that even if a long-term key is compromised, past communication remains secure.
What is the primary purpose of UDDI in web services?
- Creating user interfaces
- Discovering and publishing web services
- Managing databases
- Running server-side scripts
UDDI (Universal Description, Discovery, and Integration) is primarily used for discovering and publishing web services, allowing businesses to find and interact with each other's services.
What is the primary difference in the way data is retrieved between GraphQL and REST?
- Both retrieve data in the same way
- GraphQL retrieves fixed data structures, while REST allows clients to request only the data they need
- None of the above
- REST retrieves fixed data structures, while GraphQL allows clients to request only the data they need
GraphQL allows clients to specify the exact data they need, minimizing over-fetching or under-fetching, while REST returns fixed data structures.
WS-Security is a standard that applies security at the _______ level.
- Application
- Message
- Network
- Transport
WS-Security is a standard that applies security at the message level. It ensures the confidentiality, integrity, and authentication of messages exchanged between web services by embedding security information directly within the SOAP message.
How does HTTP/2 improve performance compared to HTTP/1.1 in web services?
- All of the above
- Compression
- Multiplexing
- Prioritization
HTTP/2 improves performance through features like multiplexing, compression, and prioritization. These enhancements lead to more efficient data transfer, reduced latency, and optimized resource utilization, providing a significant boost in web services performance compared to the older HTTP/1.1 protocol.
In the context of web services, what does UDDI provide?
- Communication protocol for web services
- Data serialization for web services
- Directory services for discovering web services
- Security for web services
UDDI (Universal Description, Discovery, and Integration) provides directory services for discovering web services, allowing applications to find and invoke web services dynamically.
A web service has to be updated without disrupting existing clients. What versioning strategy should be used?
- Header Versioning
- Media Type Versioning
- Query Parameter Versioning
- URI Versioning
Header Versioning involves specifying the version information in the HTTP headers, allowing seamless updates without disrupting existing clients.
When integrating third-party APIs into a web service, what is a crucial factor to ensure seamless operation?
- Heavy data payload
- Minimal error handling
- Public availability
- Rate limiting and authentication
Ensuring rate limiting and proper authentication when integrating third-party APIs is crucial for security and preventing abuse.