Postman Interview Questions and Answers Preparation Practice Test | Freshers to Experienced | Detailed Explanations
What you will learn
Understanding of Postman’s Interface and Features
Proficiency in Creating and Managing API Requests
Mastery of Testing and Debugging APIs
Expertise in Automating Workflows and Integrating with CI/CD Pipelines
Why take this course?
- What does “Environment” in Postman mean?
Correct Answer: C. To customize requests with different variables for different contexts
Explanation: Environments in Postman are a powerful feature that allows users to manage different sets of data (such as base URLs, headers, and other parameters) required by your API for different stages of development and deployment (like development, staging, production). You can quickly switch between these environments without having to alter the actual request. This is particularly useful when working with APIs that have different configurations or require different authentication tokens for different environments, thus saving time and reducing errors associated with manual changes.
- What HTTP status code typically represents a successful GET request?
Correct Answer: A. 200 OK
Explanation: The HTTP status code 200 OK is the standard response for a successful HTTP request, particularly with GET requests. It indicates that the server has successfully received and processed the request, and it is including the requested data in the response body. This status code confirms that the API endpoint is functioning as expected and returning the correct data to the client.
- In Postman, what is the purpose of using pre-request scripts?
Correct Answer: B. To dynamically modify the request parameters before sending it
Explanation: Pre-request scripts in Postman allow you to execute JavaScript code before a request is sent to the server. These scripts can dynamically change request parameters, set cookies or headers, or perform any other operation that prepares your request accordingly. This functionality is crucial for creating flexible and dynamic API testing scenarios where the same API endpoint may require different inputs based on various conditions or use cases.
- Which feature in Postman allows users to simulate an API response without setting up a backend server?
Correct Answer: B. Mock Servers
Explanation: Mock Servers in Postman enable users to simulate API responses, providing a way to test frontend logic without needing a real server or backend service. This feature is particularly useful during the development phase when the actual backend may not be ready yet, or when you want to test specific responses without relying on the live API’s availability or performance. Mock Servers support collaboration by allowing the sharing of mock data among team members.
- When using Postman, what is the benefit of exporting a collection as a Postman Collection Format (v2)?
Correct Answer: A. It ensures compatibility with the latest Postman features and improvements.
Explanation: Exporting a collection in Postman Collection Format (v2) ensures that your collection is fully compatible with the latest features and improvements introduced by Postman. The v2 format includes new features that may not be supported in the older v1 format. By using the v2 format, you can take advantage of all the current features that Postman offers, such as more sophisticated testing, pre-request scripting, detailed descriptions, and improved structure and organization of API requests. This ensures that your collection is up-to-date with Postman’s capabilities for testing and development of APIs.