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41+ Postman Interview Questions & Answers (with Notes) | PART 1

Pramod Dutta
Lead Automation Expert || Founder of TheTestingAcademy.com || Youtube at TheTestingacademy || Udemy Teacher. || scrolltest.com
・3 min read

In this video, we are going to cover the 41+ Postman interview questions and answers.

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✅ 41+ Postman Interview Questions & Answers
➡️ 1. What is Postman?
It is not an API Testing Tool
Postman is collaboration platform for API development
Help you to Design, Share, build , test, Document APIs
Postman supports Protocols - REST, SOAP, and GraphQL
Where as CURL
Source curl.se
Website
https://www.postman.com/
Can use as

➡️ 2. Why use Postman?
Clean and Easy to use UI
You can perform Exploratory Testing of APIs
Dynamic request, data and Collections support
Team workspace, sharing, mocking, monitoring of APIs
Write test case, put them in CI/CD with newman
Import from curl and different ways, sharing as link, explore feature
➡️ 3. When to use Postman?
Context as Software Tester
You have few API request
You don’t want to manage as code
Team is little not well versed with code
You want to cover API test(small collection)
➡️ 4. What are drawbacks of Postman?
Not suitable for the larger or 1000+ API request
For Large project its very clumsy to manage postman requests or collections
Not suitable if you want to manage as Code, lots of duplicate code if multiple API or dynamic request are required.
➡️ 5. What is an API?
API stands for the Application Programming Interface,
They are basically a collection of functions and procedures which allows us to communicate two applications or libraries.

Read more at
https://sdet.live/4Euj
➡️ 6. Can you tell alternates of Postman?
Katalon Studio
SoapUI
Apigee
Jmeter
Tricentis Tosca
hoppscotch.io
➡️ 7. What are different HTTP Methods?
GET
POST
PATCH
PUT
DELETE
OPTIONS
HEAD
➡️ 8. Can you test SOAP request with POSTMAN?
Yes
Demo
https://sdet.live/4Eus
➡️ 9. What is GET request?
Retrieve information from the given server using a given URI.
Requests using GET should only retrieve data and should have no other effect on the data.
➡️ 10. What is POST request?
A POST request is used to send data to the server, for example, customer information, file upload, etc. using HTML forms.
With or without Auth
➡️ 11. What is Patch Request?
Partial Update to the target resource
➡️ 12. What is Put request?
Replaces all current representations of the target resource with the uploaded content.
➡️ 13. What is Delete request?
Removes all current representations of the target resource given by a URI.
➡️ 14. What is HEAD http method?
Same as GET, but transfers the status line and header section only.
➡️ 15. What you validate in API Response?
Status Code
Response Body
Further Testing
Headers

  1. How do import request from dev tools to Postman?

  2. What type of Authentication supports Postman?
    No auth
    Basic
    Digest
    Bearer Token
    AWS Signature
    NTLM
    OAuth1,2
    API key

  3. What is Basic Auth, How to perform in Postman ?
    https://scrolltest.com/2018/11/22/how-to-handle-authentications-with-postman/
    Basic access authentication is a method for an HTTP user agent (e.g. a web browser) to provide a username and password when making a request. In the example,
    https://learning.postman.com/docs/sending-requests/authorization/#basic-auth

  4. What is digest auth?, How to perform in POSTMAN?
    In the Digest Auth. method username and password are sent over the web after applying some hash functions, Therefore which makes it more secure over network.
    https://learning.postman.com/docs/sending-requests/authorization/#digest-auth

  5. What is bearer token? And How to use it with POSTMAN?
    Bearer tokens allow requests to authenticate using an access key, such as a JSON Web Token (JWT).

  6. What is OAuth 1.0 & 2.0:-
    and How to do it with POSTMAN?
    They are the way for Internet users to grant websites or applications access to their information on other websites but without giving them the passwords.
    https://learning.postman.com/docs/sending-requests/authorization/#oauth-10
    https://learning.postman.com/docs/sending-requests/authorization/#oauth-20

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