In a situation where a web service frequently experiences high loads, what strategy should be implemented for optimal performance?
- Caching mechanisms
- Increasing server resources
- Reducing error handling
- Using synchronous communication
Implementing caching mechanisms is a strategy for optimizing performance under high loads by reducing the need for repeated computations.
SAML is mainly used for which type of authentication?
- Biometric Authentication
- Captcha-based Authentication
- Single Sign-On (SSO)
- Two-Factor Authentication (2FA)
SAML (Security Assertion Markup Language) is mainly used for Single Sign-On (SSO) authentication.
In web services, how is a '404 Not Found' error typically resolved?
- Changing the programming language
- Ignoring the error
- Increasing server load capacity
- Providing a valid endpoint URL
A '404 Not Found' error in web services is typically resolved by providing a valid endpoint URL that the service can locate.
_______ is a common mechanism used in OAuth for client authentication.
- API Key
- Client Credentials
- JWT
- SAML
In OAuth, the Client Credentials grant type is a common mechanism for client authentication. It involves the client (application) presenting its credentials to the authorization server to obtain an access token. This is often used in server-to-server communication or when the client is a trusted entity.
The process of isolating the container's view of the operating system, including file systems and network interfaces, is known as _______ in Docker.
- Containerization
- Isolation
- Segregation
- Virtualization
The process is known as isolation in Docker, where the container has its own isolated view of the operating system.
_______ is a design principle in RESTful services that suggests each resource should have a unique identifier.
- Resource Identifier
- Service Endpoint
- Uniform Resource Identifier (URI)
- Universal Resource Locator (URL)
The design principle in RESTful services that suggests each resource should have a unique identifier is the Uniform Resource Identifier (URI). URIs uniquely identify resources and are crucial for addressing and interacting with resources in a RESTful architecture.
The _______ protocol is often used in conjunction with SOAP to enable more secure exchanges.
- FTPS
- HTTPS
- SMTPS
- TCP
The HTTPS protocol is often used in conjunction with SOAP to enable more secure exchanges. HTTPS (Hypertext Transfer Protocol Secure) provides a secure communication channel over the internet, ensuring the confidentiality and integrity of data exchanged between clients and services.
Which type of web service is more suitable for asynchronous processing and complex operations?
- JSON-RPC
- REST (Representational State Transfer)
- SOAP (Simple Object Access Protocol)
- XML-RPC
SOAP is more suitable for asynchronous processing and complex operations. It supports features like message queuing and transactions, making it a preferred choice for scenarios where robust communication and coordination are essential.
In token-based authentication, what is the main advantage of using tokens over traditional credentials?
- Compatibility with legacy systems
- Simplicity in implementation
- Stateless nature and scalability
- Strong encryption of credentials
Token-based authentication offers a stateless and scalable solution, as tokens carry the necessary information and reduce the need for server-side storage of session data.
In a scenario involving microservices architecture, why would JWT be preferred over traditional session-based authentication?
- Compatibility with legacy systems
- Simplicity and ease of implementation
- Stateless nature and scalability
- Tight coupling between services
JWT is preferred in microservices architectures due to its stateless nature, making it scalable and efficient. It eliminates the need for centralized session management.