What is the primary purpose of mocking APIs in software testing?
- To create a copy of the production database
- To generate random test data
- To replace the actual APIs in production
- To simulate the behavior of external dependencies
Mocking APIs helps simulate the behavior of external services or components, allowing developers to test their code in isolation and ensure proper integration without relying on the actual services.
When testing for peak load, it's important to measure _________, which reflects the maximum number of requests an API can handle efficiently.
- Bandwidth
- Concurrent Users
- Latency
- Throughput
Measuring throughput is crucial when testing for peak load, as it reflects the maximum number of requests an API can handle efficiently. Throughput indicates the system's processing capacity under heavy loads, providing insights into its scalability and performance.
How does OAuth 2.0 differ from OAuth 1.0 in terms of API security?
- OAuth 1.0 uses signatures over tokens
- OAuth 1.0 uses tokens over signatures
- OAuth 2.0 uses signatures over tokens
- OAuth 2.0 uses tokens over signatures
OAuth 2.0 introduced a shift from signatures to tokens for better scalability and simplicity. It relies on access tokens rather than cryptographic signatures for security.
To assess the stability and reliability of an API, _________ testing is performed to determine how the API behaves under sustained use.
- Functional
- Integration
- Load
- Unit
Load testing is essential for evaluating the performance of an API under various levels of load. It helps identify bottlenecks and weaknesses in the system when subjected to sustained use and heavy loads.
In a CI/CD pipeline, API tests are often executed after the _________ stage.
- Build
- Deployment
- Planning
- Testing
In a CI/CD pipeline, API tests are typically executed after the Deployment stage. This is because, during the Deployment stage, the application is deployed to a testing environment, allowing for comprehensive API testing to ensure the proper integration of components. API tests at this stage help catch integration issues before they progress further in the pipeline.
RESTful APIs typically use _________ for data exchange, while SOAP APIs use _________.
- CSV
- JSON
- XML
- YAML
RESTful APIs commonly use JSON for data exchange, providing a lightweight and easy-to-read format. SOAP APIs, on the other hand, typically use XML for data exchange, which is more rigid and structured.
In complex test environments, what is a common challenge related to dependency management?
- Difficulty in version control of dependencies
- Incompatibility issues with different versions of dependencies
- Lack of documentation for dependencies
- Security vulnerabilities in dependencies
In complex test environments, managing dependencies becomes challenging due to potential incompatibility issues arising from different versions of dependencies. This can lead to runtime errors and affect the reliability of the testing environment.
For an API that needs to support third-party clients, what considerations are important when choosing an OAuth flow?
- Opt for OAuth 2.0 Authorization Code Flow with PKCE for a balance between security and usability
- Prefer OAuth 2.0 Client Credentials Flow for simplicity and efficiency
- Select OAuth 2.0 Authorization Code Flow for enhanced security
- Use OAuth 2.0 Implicit Flow for better user experience
Supporting third-party clients requires balancing security and usability, making OAuth 2.0 Authorization Code Flow with PKCE a suitable choice for enhanced security without compromising user experience.
Which protocol is primarily used for communication in REST APIs?
- FTP
- HTTP
- TCP
- UDP
REST APIs commonly use the HTTP protocol for communication. HTTP is a stateless protocol that allows communication between clients and servers, making it suitable for RESTful services.
GraphQL APIs are unique in allowing clients to:
- Access server-side logic directly
- Execute complex database queries
- Receive all available data by default
- Specify the data they need
GraphQL APIs allow clients to specify the data they need, enabling them to request only the required information. This flexibility in data retrieval is a key feature of GraphQL, distinguishing it from traditional RESTful APIs.