API Testing MCQ Questions - Page 1
REST API testing, Postman, and API automation with real-world scenarios
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Question 1: What is API testing primarily focused on in software development?
API testing is primarily focused on testing communication between different software components through their Application Programming Interfaces (APIs). It focuses on testing the business logic, data responses, and integration between systems.
Question 2: Which tools are commonly utilized for API testing purposes?
All of these tools can be utilized for API testing purposes. Postman is specifically designed for API testing and development, Selenium can test web APIs through browser automation, and JMeter can perform load testing on APIs. Each tool serves different aspects of API testing.
Question 3: What does REST represent in API testing terminology?
REST stands for Representational State Transfer in API testing terminology. It's an architectural style for designing networked applications that use HTTP methods (GET, POST, PUT, DELETE) to perform operations on resources identified by URLs.
Question 4: Which HTTP method is used to retrieve data in REST API testing?
The GET method is used to retrieve data in REST API testing. It's a safe and idempotent method that requests data from a specified resource without causing any side effects on the server.
Question 5: What is the primary purpose of API status codes in testing?
The primary purpose of API status codes in testing is to communicate the result of the API request. They provide information about whether the request was successful (2xx), had client errors (4xx), or server errors (5xx), helping clients understand how to handle the response.
Question 6: What does a 404 status code indicate in API testing?
A 404 status code indicates that the requested resource was not found in API testing. This is a client error that occurs when the API endpoint or resource doesn't exist or is not accessible.
Question 7: What is JSON in the context of API testing?
JSON (JavaScript Object Notation) is a lightweight data format used for exchanging data in API testing. It's human-readable, easy to parse, and widely used for API requests and responses due to its simplicity and flexibility.
Question 8: What is the primary purpose of API authentication in testing?
The primary purpose of API authentication in testing is to secure API endpoints and verify user identity. It ensures that only authorized users can access protected resources and helps maintain the security and integrity of the API.
Question 9: What does API rate limiting accomplish in testing scenarios?
API rate limiting accomplishes limiting the number of API calls that can be made within a specific time period. It helps prevent abuse, ensures fair usage, and protects the API server from being overwhelmed by too many requests.
Question 10: What are the key differences between API testing and UI testing?
All of these statements represent key differences between API testing and UI testing. API testing is generally faster and more reliable, focuses on testing business logic directly without UI dependencies, while UI testing focuses on the user interface and user experience.