Which of the following is a common type of API testing?

• A. Load testing
• B. Data Analysis testing
• C. UI Performance testing
• D. Code Compliance testing

Answer: (A)

Load testing is indeed a common type of API testing as it focuses on evaluating the performance of an API under various conditions. In the context of APIs, load testing helps ensure that the system can handle a specific expected load, which includes analyzing how the API behaves under normal and peak traffic conditions. The goal is to identify any performance bottlenecks, system limits, and potential reliability issues that may arise when multiple users or systems access the API simultaneously.

While the other types of testing mentioned may be relevant in broader contexts, they are not specifically focused on API testing. Data analysis testing typically involves validating data correctness or integrity but does not directly address how an API performs under load. UI performance testing primarily concentrates on the front-end aspects of web applications, assessing the user interface rather than the API itself. Code compliance testing relates to ensuring that the code adheres to specified standards or regulations, which does not pertain directly to the functional performance of an API.