{"id":5797,"date":"2025-03-04T15:53:27","date_gmt":"2025-03-04T15:53:27","guid":{"rendered":"https:\/\/www.hirist.tech\/blog\/?p=5797"},"modified":"2025-12-29T10:38:25","modified_gmt":"2025-12-29T10:38:25","slug":"top-20-postman-interview-questions-and-answers","status":"publish","type":"post","link":"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/","title":{"rendered":"Top 20+ Postman Interview Questions and Answers"},"content":{"rendered":"\n<p>If you are preparing for an interview focused on API testing, understanding Postman is essential. Postman is a widely-used tool for testing, debugging, and documenting APIs, making it popular among developers and QA professionals.&nbsp;In this blog, we have compiled the top 20+ Postman interview questions to help you get ready.&nbsp;<\/p>\n\n\n\n<p>These questions cover essential concepts, practical examples, and common scenarios that interviewers frequently ask.&nbsp;<\/p>\n\n\n\n<p><strong>Fun Fact:<\/strong> Postman API Platform is used by many leading companies, including 98% of Fortune 500 organizations.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/#Postman_Interview_Questions_for_Freshers\" title=\"Postman Interview Questions for Freshers\">Postman Interview Questions for Freshers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/#Postman_Interview_Questions_for_Experienced\" title=\"Postman Interview Questions for Experienced\">Postman Interview Questions for Experienced<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/#Postman_Interview_Questions_for_QA\" title=\"Postman Interview Questions for QA\">Postman Interview Questions for QA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/#Advanced_Postman_API_Interview_Questions\" title=\"Advanced Postman API Interview Questions\">Advanced Postman API Interview Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/#Postman_API_Testing_Interview_Questions\" title=\"Postman API Testing Interview Questions\">Postman API Testing Interview Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/#Manual_API_Testing_Using_Postman_Interview_Questions\" title=\"Manual API Testing Using Postman Interview Questions\">Manual API Testing Using Postman Interview Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-postman-interview-questions-and-answers\/#Wrapping_Up\" title=\"Wrapping Up\">Wrapping Up<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Postman_Interview_Questions_for_Freshers\"><\/span>Postman Interview Questions for Freshers<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here is a list of basic Postman interview questions and answers for freshers:&nbsp;<\/p>\n\n\n\n<ol>\n<li><strong>What is Postman, and why is it used in API testing?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Postman is a popular API testing tool used by developers and testers to send API requests, validate responses, and automate tests. It simplifies API development with features like collections, scripting, and environment variables.<\/p>\n\n\n\n<ol start=\"2\">\n<li><strong>How do you create a new request in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>To create a new request in Postman:<\/p>\n\n\n\n<ul>\n<li>Open Postman and click on New Request.<\/li>\n\n\n\n<li>Choose the HTTP method (GET, POST, etc.).<\/li>\n\n\n\n<li>Enter the API endpoint URL.<\/li>\n\n\n\n<li>Add headers, query parameters, or body content if needed.<\/li>\n\n\n\n<li>Click Send to execute the request.<\/li>\n<\/ul>\n\n\n\n<ol start=\"3\">\n<li><strong>What are the different HTTP methods in Postman, and what do they do?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li><strong>GET<\/strong> \u2013 Retrieves data from a server.<\/li>\n\n\n\n<li><strong>POST<\/strong> \u2013 Sends data to create a resource.<\/li>\n\n\n\n<li><strong>PUT<\/strong> \u2013 Updates an existing resource.<\/li>\n\n\n\n<li><strong>PATCH<\/strong> \u2013 Partially updates a resource.<\/li>\n\n\n\n<li><strong>DELETE<\/strong> \u2013 Removes a resource from the server.<\/li>\n<\/ul>\n\n\n\n<ol start=\"4\">\n<li><strong>How can you send query parameters in a GET request using Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>In Postman, you can add query parameters by clicking on the Params tab in the request window. Enter the key-value pairs, and Postman appends them to the URL automatically.<\/p>\n\n\n\n<ol start=\"5\">\n<li><strong>What is the purpose of collections in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>A collection in Postman is a group of saved API requests that can be organized, shared, and run in an automated sequence. It helps testers manage APIs efficiently.<\/p>\n\n\n\n<p><strong>Note: <\/strong>If you don\u2019t have any Postman interview experience, these questions will help you prepare.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Postman_Interview_Questions_for_Experienced\"><\/span>Postman Interview Questions for Experienced<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here are some important Postman tool interview questions and answers for experienced candidates:&nbsp;<\/p>\n\n\n\n<ol start=\"6\">\n<li><strong>How do you use environment variables in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Environment variables store reusable values like API base URLs or authentication tokens. You can define them under Environments, then reference them using {{variable_name}} in requests.<\/p>\n\n\n\n<ol start=\"7\">\n<li><strong>What are Pre-request Scripts and Test Scripts in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li><strong>Pre-request scripts<\/strong> run before sending a request and are used for setting variables, generating timestamps, or authentication.<\/li>\n\n\n\n<li><strong>Test scripts<\/strong> run after a response is received and help validate API responses using JavaScript.<\/li>\n<\/ul>\n\n\n\n<ol start=\"8\">\n<li><strong>How do you handle authentication in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Postman supports various authentication methods, including:<\/p>\n\n\n\n<ul>\n<li><strong>Basic Auth<\/strong> \u2013 Username and password.<\/li>\n\n\n\n<li><strong>Bearer Token<\/strong> \u2013 OAuth 2.0 or API tokens.<\/li>\n\n\n\n<li><strong>API Key<\/strong> \u2013 Sent in headers or as a query parameter.<br>Authentication details can be set under the Authorization tab.<\/li>\n<\/ul>\n\n\n\n<ol start=\"9\">\n<li><strong>What is the difference between local, global, and environment variables in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li><strong>Local variables<\/strong> exist only within a request.<\/li>\n\n\n\n<li><strong>Global variables<\/strong> are available across all requests in Postman.<\/li>\n\n\n\n<li><strong>Environment variables<\/strong> are specific to a defined environment and can change based on the setup.<\/li>\n<\/ul>\n\n\n\n<ol start=\"10\">\n<li><strong>How can you automate API testing in Postman using Newman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Newman is Postman\u2019s command-line tool that runs collections and automates testing. To execute tests:<\/p>\n\n\n\n<ol>\n<li>Install Newman using npm install -g newman.<\/li>\n\n\n\n<li>Export the Postman collection.<\/li>\n\n\n\n<li>Run newman run collection.json.<\/li>\n\n\n\n<li>View the test results in the console.<\/li>\n<\/ol>\n\n\n\n<p>Newman also supports advanced features like running tests with environment variables and generating detailed reports, which can be integrated into CI\/CD pipelines for continuous <a href=\"https:\/\/www.hirist.tech\/blog\/tag\/testing\/\" target=\"_blank\" rel=\"noreferrer noopener\">testing<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Postman_Interview_Questions_for_QA\"><\/span>Postman Interview Questions for QA<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>If you are applying for a QA role, you might come across Postman testing interview questions like these:&nbsp;<\/p>\n\n\n\n<ol start=\"11\">\n<li><strong>How do you validate API responses in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Postman uses JavaScript-based test scripts to validate responses. Under the Tests tab, you can write assertions like:<\/p>\n\n\n\n<p>pm.test(&#8220;Status code is 200&#8221;, function () {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;pm.response.to.have.status(200);<\/p>\n\n\n\n<p>});<\/p>\n\n\n\n<p>This checks if the response status code is 200.<\/p>\n\n\n\n<ol start=\"12\">\n<li><strong>How can you perform data-driven testing in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Postman allows data-driven testing using external CSV or JSON files. You can:<\/p>\n\n\n\n<ol>\n<li>Prepare a CSV\/JSON file with test data.<\/li>\n\n\n\n<li>Use pm.iterationData.get(&#8220;key&#8221;) to retrieve values.<\/li>\n\n\n\n<li>Run the collection with data using Newman:<\/li>\n<\/ol>\n\n\n\n<p>newman run collection.json -d data.csv<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advanced_Postman_API_Interview_Questions\"><\/span>Advanced Postman API Interview Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Let\u2019s go through advanced-level API Postman interview questions and answers:&nbsp;<\/p>\n\n\n\n<ol start=\"13\">\n<li><strong>What are monitors in Postman, and how do they work?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Monitors in Postman run collections on a schedule to check API performance and reliability. They execute tests in the cloud and provide reports on failures.<\/p>\n\n\n\n<ol start=\"14\">\n<li><strong>How do you write custom assertions in Postman using JavaScript?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Custom assertions can be written under the Tests tab using JavaScript.<\/p>\n\n\n\n<p><strong>Example:<\/strong><\/p>\n\n\n\n<p>pm.test(&#8220;Response contains expected data&#8221;, function () {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;var jsonData = pm.response.json();<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;pm.expect(jsonData.name).to.eql(&#8220;John Doe&#8221;);<\/p>\n\n\n\n<p>});<\/p>\n\n\n\n<p>This verifies that the name field in the response matches &#8220;John Doe&#8221;.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Postman_API_Testing_Interview_Questions\"><\/span>Postman API Testing Interview Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here are is a list of common interview questions on API testing using Postman:&nbsp;<\/p>\n\n\n\n<ol start=\"15\">\n<li><strong>How can you test RESTful APIs using Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li>Select the appropriate HTTP method.<\/li>\n\n\n\n<li>Enter the API endpoint.<\/li>\n\n\n\n<li>Add headers, query parameters, or body content.<\/li>\n\n\n\n<li>Click Send and verify the response, status code, and headers.<\/li>\n\n\n\n<li>Use test scripts to validate response data.<\/li>\n<\/ul>\n\n\n\n<ol start=\"16\">\n<li><strong>What is the difference between SOAP and REST APIs, and how can you test both in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li><strong>REST APIs<\/strong> use JSON\/XML, are lightweight, and follow HTTP methods.<\/li>\n\n\n\n<li><strong>SOAP APIs<\/strong> use XML and follow strict message formats.<br>Postman supports both, allowing you to send requests with XML for SOAP APIs and JSON for REST APIs.<\/li>\n<\/ul>\n\n\n\n<ol start=\"17\">\n<li><strong>How do you debug API requests and responses in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Postman provides tools for debugging:<\/p>\n\n\n\n<ul>\n<li><strong>Console<\/strong> \u2013 Logs request\/response details (View &gt; Show Postman Console).<\/li>\n\n\n\n<li><strong>Test scripts<\/strong> \u2013 Log variables using console.log(variable).<\/li>\n\n\n\n<li><strong>Postman Interceptor<\/strong> \u2013 Captures network traffic for troubleshooting.<\/li>\n<\/ul>\n\n\n\n<ol start=\"18\">\n<li><strong>What are status codes in API testing, and what do common ones like 200, 400, and 500 mean?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>This is one of the most common API testing with Postman interview questions for freshers.&nbsp;<\/p>\n\n\n\n<p>Status codes indicate the result of an API request:<\/p>\n\n\n\n<ul>\n<li><strong>200 OK<\/strong> \u2013 Success.<\/li>\n\n\n\n<li><strong>201 Created<\/strong> \u2013 Resource created.<\/li>\n\n\n\n<li><strong>400 Bad Request<\/strong> \u2013 Invalid request.<\/li>\n\n\n\n<li><strong>401 Unauthorized<\/strong> \u2013 Missing or incorrect authentication.<\/li>\n\n\n\n<li><strong>403 Forbidden<\/strong> \u2013 No permission.<\/li>\n\n\n\n<li><strong>500 Internal Server Error<\/strong> \u2013 Server-side issue.<\/li>\n<\/ul>\n\n\n\n<ol start=\"19\">\n<li><strong>How does Postman\u2019s AI Agent Builder enhance API development?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Postman\u2019s AI Agent Builder simplifies the creation of AI-driven agents and workflows, allowing developers to automate complex tasks and improve API integration.<\/p>\n\n\n\n<ol start=\"20\">\n<li><strong>What is Postbot, and how can it assist in API testing?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Postbot is an AI-powered assistant in Postman that helps users by generating test scripts, automating documentation, debugging API requests, and visualizing responses.<\/p>\n\n\n\n<pre class=\"wp-block-verse\"><strong>Also Read - <a href=\"https:\/\/www.hirist.tech\/blog\/top-20-rest-api-interview-questions-and-answers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 50+ REST API Interview Questions and Answers<\/a><\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Manual_API_Testing_Using_Postman_Interview_Questions\"><\/span>Manual API Testing Using Postman Interview Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here are some manual API testing using Postman interview questions and answers:&nbsp;<\/p>\n\n\n\n<ol start=\"21\">\n<li><strong>How do you test an API manually in Postman without writing scripts?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li>Open Postman and create a new request.<\/li>\n\n\n\n<li>Choose the HTTP method and enter the API URL.<\/li>\n\n\n\n<li>Add headers, parameters, or body data if required.<\/li>\n\n\n\n<li>Click Send and review the response status, body, and headers.<\/li>\n<\/ul>\n\n\n\n<ol start=\"22\">\n<li><strong>What is the difference between manual and automated API testing in Postman?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li><strong>Manual Testing<\/strong> \u2013 Requests are sent manually, and responses are checked visually.<\/li>\n\n\n\n<li><strong>Automated Testing<\/strong> \u2013 Uses test scripts and Newman to validate responses programmatically.<br>Automation is preferred for large-scale or repetitive API testing.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-verse\"><strong>Also Read - <a href=\"https:\/\/www.hirist.tech\/blog\/top-45-quality-assurance-interview-questions-and-answers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 45 Quality Assurance Interview Questions and Answers<\/a><\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wrapping_Up\"><\/span>Wrapping Up<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>These 20+ Postman interview questions and answers will help you prepare for your next API testing interview. Whether you are a fresher or an experienced professional, understanding Postman\u2019s features and functionalities is essential for API testing and development. Practising these <a href=\"https:\/\/www.hirist.tech\/blog\/tag\/questions\/\" target=\"_blank\" rel=\"noreferrer noopener\">questions<\/a> will give you the confidence to tackle real-world scenarios. Looking for IT jobs in India, including roles that require <a href=\"https:\/\/www.hirist.tech\/k\/postman-jobs.html?ref=blog\" target=\"_blank\" rel=\"noreferrer noopener\">Postman skills<\/a>? Visit Hirist, an online job portal where you can easily find the best opportunities.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you are preparing for an interview focused on API testing, understanding Postman is essential.&hellip;<\/p>\n","protected":false},"author":1,"featured_media":5806,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,27,19],"tags":[32,34,33,76],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>20+ Postman Interview Questions and Answers (2026) | Hirist<\/title>\n<meta name=\"description\" content=\"Get ready for your interview with these top 20+ Postman interview questions and answers for API testing for experienced and freshers.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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