What is a key characteristic of microservices architecture?
A Static
B Distributed
C Monolithic
D Centralized
Microservices architecture is a distributed approach where software is broken down into smaller, independent services. Each service can be developed, deployed, and scaled independently, improving flexibility and scalability compared to monolithic architectures.
Which of the following is a benefit of using APIs in software development?
A Simplified testing
B Slower development
C Increased cost
D Reusability
APIs allow developers to reuse existing functionality across different applications. By defining a set of functions or procedures, APIs make it easier to integrate systems and reduce the need to duplicate code, improving efficiency.
What is the purpose of API design in software systems?
A Enable system communication
B Automate testing
C Provide a user interface
D Improve performance
API design defines how different software components interact. A well designed API provides a clear interface for communication between systems, enabling them to exchange data and functionality efficiently without exposing internal details.
Which of the following is a characteristic of the RESTful API design?
A Tight coupling
B Statefulness
C Statelessness
D Complex interactions
RESTful APIs are designed to be stateless, meaning each request from a client to the server contains all the information needed to process the request. This makes RESTful APIs scalable and easier to maintain.
What is the role of software documentation?
A Describe system behavior
B Deploy software
C Store source code
D Write tests
Software documentation provides detailed descriptions of system functionality, design, and usage. It helps developers, testers, and users understand how the system works, making it easier to maintain, extend, and troubleshoot the software.
Which of the following is a best practice for API security?
A Allowing open access
B Using API keys
C Disabling authentication
D Ignoring encryption
API keys are used to authenticate and authorize access to an API. They help control who can use the API, ensuring that only authorized users or systems can interact with the service securely.
What is the primary benefit of using microservices over monolithic architecture?
A Lower cost
B Fewer components
C Easier scaling
D Simpler design
Microservices allow each service to be scaled independently, providing flexibility in resource allocation. This makes microservices architecture more adaptable to changing demands, while monolithic systems require scaling the entire application.
What is an important consideration when designing APIs for external users?
A System dependencies
B Code quality
C User interface design
D Data encryption
When designing APIs for external users, data encryption is crucial for securing communication between the client and the server. This ensures that sensitive information, such as user data, remains confidential and protected from unauthorized access.
In the context of microservices, what is “service discovery”?
A Managing user requests
B Locating services dynamically
C Tracking service versions
D Finding system bugs
Service discovery is the process of automatically identifying and locating available services in a microservices architecture. This is essential for enabling communication between services, especially as services scale up or move across different environments.
Which type of architecture focuses on breaking down an application into smaller, independent services?
A Event driven
B Layered
C Microservices
D Client server
Microservices architecture divides an application into small, independent services that can be developed, deployed, and maintained separately. Each service focuses on a specific functionality, improving scalability, flexibility, and fault isolation.
What is an essential feature of a RESTful API?
A Use of HTTP methods
B Client server relationship
C Data storage
D High complexity
RESTful APIs rely on standard HTTP methods (GET, POST, PUT, DELETE) to interact with resources. These methods help perform CRUD (Create, Read, Update, Delete) operations, making RESTful APIs easy to understand and use.
Why is API versioning important?
A To manage user data
B To reduce costs
C To handle breaking changes
D To improve performance
API versioning allows developers to introduce changes to the API without affecting existing users. By maintaining multiple versions, clients can continue using the old version while new features or changes are introduced in the new version.
What is a key benefit of using automated testing in software development?
A Reduced costs
B Faster deployment
C Increased complexity
D More code coverage
Automated testing helps ensure that a larger portion of the code is tested, including edge cases that might be missed during manual testing. This increases code coverage, making the system more robust and reliable.
What is the main challenge of debugging microservices architectures?
A Large codebase
B Lack of resources
C Complex service dependencies
D High latency
Debugging microservices can be challenging due to the complex interactions between many independent services. Identifying issues often requires tracing multiple service interactions, which can be difficult when services are spread across different environments.
What is the role of the “client” in a RESTful API?
A Send requests
B Generate responses
C Store data
D Process data
In a RESTful API, the client sends requests to the server for specific resources. The server processes these requests and returns the corresponding response, typically in the form of data, which the client can then use.