An API is primarily used for graphical user interfaces (GUIs) to interact with users.

• True

• False

Answer explanation

APIs are designed for communication between software components, not for direct user interaction through a GUI.

Lack of API standardization is a challenge for testers.

• True

• False

Answer explanation

The document highlights that non-standardization for API naming, paths, and call structure is a significant challenge in API testing.

Risk-based testing helps prioritize API tests based on the likelihood and impact of failures.

• True

• False

Answer explanation

This approach ensures limited testing time is focused on high-risk areas to maximize effectiveness.

Test automation is not useful in API testing since API tests can only be performed manually.

• True

• False

Answer explanation

Automated API testing is widely used to execute repetitive test cases, ensuring efficiency and accuracy in continuous integration.

Regression testing in APIs does not require attention to environmental dependencies.

• True

• False

Answer explanation

API testing must consider environmental factors such as test data availability, dependencies on other APIs, and versioning.

Security is a crucial aspect of API testing, as vulnerabilities can lead to data breaches.

• True

• False

Answer explanation

APIs handle sensitive data, and insecure implementations can expose personal or business-critical information.

API performance testing is unnecessary if the API is functionally correct.

• True

• False

Answer explanation

Even if an API is functionally correct, poor performance can cause timeouts, system crashes, or degraded user experience.

What does API stand for?

• Application Programming Interface

• Automated Programming Interface

• Application Protocol Interface

• Automated Protocol Interface

You are testing an API for an e-commerce application that processes orders. The API needs to handle a high volume of requests during peak shopping hours. Which type of performance testing would you prioritize?

• Spike performance testing

• Soak performance testing

• Stress performance testing

• Load performance testing

Answer explanation

Spike performance testing is used to evaluate how the API handles sudden increases in load, which is common during peak shopping hours. This helps ensure the API can handle high volumes of requests without crashing.

You are tasked with testing a new API endpoint that retrieves user data. The endpoint is expected to be used by multiple services within the organization. What is a key expectation from you as an API tester?

• To ensure the endpoint has a graphical user interface

• To understand the purpose and use of the API endpoint

• To develop new API endpoints

• To ignore security practices

Answer explanation

As an API tester, it is crucial to understand the purpose and use of the API endpoint to ensure it functions correctly and meets the needs of the services that will use it.