A company is deploying a new set of microservices and needs centralized monitoring of API traffic. Which component is most crucial?
- API Gateway
- Database
- Load Balancer
- Message Queue
In microservices architecture, an API Gateway is crucial for centralized monitoring of API traffic, allowing for efficient management and analysis.
What is a Web Service primarily used for in application development?
- Mobile app development
- Video game programming
- Web page design
- authentication and Authorization
Web Services primarily facilitate data exchange between different software applications. They allow interoperability between different systems.
A web service uses _______ for encrypting sensitive data in transit.
- FTPS
- HTTPS
- SNMP
- SSH
Web services commonly use HTTPS (Hypertext Transfer Protocol Secure) for encrypting sensitive data in transit.
UDDI's _______ feature allows for the integration of diverse web services.
- Composition
- Discovery
- Negotiation
- Registry
In UDDI, the Registry feature is crucial for allowing the integration of diverse web services. The registry acts as a centralized repository where service providers publish their service descriptions, making it easier for service consumers to discover and utilize these services.
What does a successful unit test indicate about a web service method?
- The entire system is bug-free
- The method behaves as expected in isolation
- The method is optimized for performance
- The user interface is responsive
A successful unit test indicates that a web service method behaves as expected in isolation, ensuring the correctness of individual components.
_______ is a common framework used for building secure, federated identity solutions.
- OAuth
- REST
- SAML
- SOAP
SAML (Security Assertion Markup Language) is commonly used for building secure, federated identity solutions.
The principle of _______ in SOA ensures services are loosely coupled and independently deployable.
- Abstraction
- Interoperability
- Modularity
- Reusability
The principle of Reusability in SOA ensures that services can be reused in various contexts, promoting flexibility and efficiency. This helps in achieving loose coupling, where changes in one service do not affect others, and each service can be independently deployed and updated.
What major challenge in API development is addressed more effectively by GraphQL than REST?
- Latency issues
- Over-fetching of data
- Security vulnerabilities
- Under-fetching of data
GraphQL addresses the challenge of over-fetching, allowing clients to request only the data they need.
The process of creating a secure digital signature in web services involves the use of _________.
- Private Key
- Public Key
- Session Key
- Symmetric Key
Digital signatures in web services involve using the private key to create a signature, which can be verified using the corresponding public key.
What is a primary security concern when implementing token-based authentication?
- Lack of support for multi-factor authentication
- Server performance degradation
- Session hijacking
- Token interception and theft
A primary security concern in token-based authentication is the interception and theft of tokens, which can lead to unauthorized access if not properly secured.
HTTPS uses ________ to provide secure communication over a computer network.
- HTTP
- SMTP
- SSL/TLS
- UDP
HTTPS (Hypertext Transfer Protocol Secure) uses SSL/TLS (Secure Sockets Layer/Transport Layer Security) to provide a secure and encrypted communication channel over a computer network, ensuring the confidentiality and integrity of data exchanged between the client and server.
In WS-Security, how is the element wsse:Security used?
- It authenticates users
- It defines encryption rules
- It encapsulates security headers
- It specifies service endpoints
The wsse:Security element in WS-Security is used to encapsulate security headers within a SOAP message. These security headers contain information related to authentication, authorization, and integrity, allowing for the secure exchange of messages in a web service environment.