Accenture API Testing Interview Questions

Introduction – Why API Testing Is Important in Accenture Interviews

At Accenture, most projects are enterprise-scale digital applications involving banking, insurance, healthcare, retail, cloud, and microservices architectures. In such systems, APIs are the backbone that connect web apps, mobile apps, databases, and third-party services.

That’s why accenture api testing interview questions are a regular part of:

• Manual Testing interviews
  
• Automation Testing interviews
  
• API / Backend Testing roles
  
• Digital QA & Agile QA profiles
  

Accenture interviewers focus on:

• Clear understanding of API testing fundamentals
  
• Practical knowledge of REST APIs
  
• Strong grip on HTTP methods & status codes
  
• Hands-on exposure to Postman / SoapUI
  
• Basic awareness of automation using Java or Python
  
• Ability to explain real-time project scenarios
  

This article is written in a simple, interview-focused style, suitable for freshers, lateral hires, and experienced professionals, and closely aligned with actual Accenture interview patterns.

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What Is API Testing? (Simple & Interview-Friendly)

API testing is the process of validating Application Programming Interfaces to ensure that:

• APIs accept valid requests
  
• APIs return correct responses
  
• Business logic is correctly implemented
  
• Errors are handled properly
  
• Security rules are enforced
  

API testing is done without UI, making it faster, more reliable, and closer to backend logic.

Simple Example

For a User Registration API:

• Valid data → 201 Created
  
• Missing mandatory field → 400 Bad Request
  
• Duplicate email → 409 Conflict
  

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REST vs SOAP vs GraphQL (Accenture Project Context)

Feature	REST	SOAP	GraphQL
Data Format	JSON / XML	XML only	JSON
Performance	Fast	Slower	Optimized
Accenture Usage	Very High	High (banking)	Limited
Testing Tools	Postman, Rest Assured	SoapUI	Specialized
Interview Focus	High	Medium	Low

👉 In accenture api testing interview questions, REST and SOAP are most commonly discussed.

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Accenture API Testing Interview Questions & Answers (100+)

Section 1: API & REST Basics (Q1–Q20)

1. What is API testing?
   API testing validates backend services by testing requests, responses, and business rules.
   
2. Why is API testing important in Accenture projects?
   Because most Accenture projects are backend-driven enterprise systems.
   
3. What is a REST API?
   An API that follows REST principles and uses HTTP methods.
   
4. What does REST stand for?
   Representational State Transfer.
   
5. What are REST principles?
   Statelessness, client-server separation, cacheability, uniform interface.
   
6. What is an endpoint?
   A URL that represents an API resource.
   
7. What is request payload?
   Data sent to the API.
   
8. What is response payload?
   Data returned by the API.
   
9. What is statelessness?
   Each request is independent and does not store session data.
   
10. What is idempotency?
    Same request gives the same result every time.
    
11. Difference between PUT and PATCH?
    PUT updates the entire resource; PATCH updates only selected fields.
    
12. What is authentication?
    Verifying user identity.
    
13. What is authorization?
    Verifying user access rights.
    
14. Common authentication methods in Accenture projects?
    Bearer Token, OAuth, Basic Auth.
    
15. What is JWT?
    JSON Web Token used for stateless authentication.
    
16. What is JSON?
    

{

  “id”: 101,

  “name”: “Riya”

}

17. What is XML?
    

<user>

  <id>101</id>

  <name>Riya</name>

</user>

18. What is positive testing?
    Testing APIs with valid input.
    
19. What is negative testing?
    Testing APIs with invalid input.
    
20. What is API documentation?
    Documentation that explains how to use an API.
    

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HTTP Methods – Frequently Asked in Accenture Interviews

Method	Purpose
GET	Retrieve data
POST	Create new data
PUT	Update full resource
PATCH	Update partial resource
DELETE	Remove resource

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HTTP Status Codes – Must-Know for Accenture API Interviews

Code	Meaning	Example
200	OK	Successful GET
201	Created	Successful POST
204	No Content	Successful DELETE
400	Bad Request	Invalid input
401	Unauthorized	Invalid token
403	Forbidden	Access denied
404	Not Found	Resource missing
409	Conflict	Duplicate data
422	Validation error	Business rule failure
500	Server Error	Backend issue

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Section 2: API Validation, Tools & Automation (Q21–Q50)

21. Which tools are commonly used for API testing in Accenture?
    Postman, SoapUI, Rest Assured, Python requests.
    
22. Why is Postman popular in Accenture projects?
    Easy to use and suitable for manual API testing.
    
23. What validations are performed in API testing?
    Status code, response body, headers, schema, response time.
    
24. Is checking status code enough?
    No, business logic and response data must be validated.
    
25. What is header validation?
    Validating headers like Authorization and Content-Type.
    
26. What is schema validation?
    Validating response structure.
    
27. What is response time testing?
    Checking API performance.
    
28. What is API smoke testing?
    Basic API health check.
    
29. What is API regression testing?
    Re-testing APIs after changes.
    
30. What is API chaining?
    Using the response of one API in another.
    
31. What is API mocking?
    Simulating API responses when backend is unavailable.
    
32. What is rate limiting?
    Restricting the number of API requests.
    
33. What is concurrency testing?
    Testing multiple requests simultaneously.
    
34. What is backend validation?
    Validating database updates after API calls.
    
35. What is API security testing?
    Testing authentication and authorization.
    
36. What is environment testing?
    Testing APIs across dev, QA, UAT, and prod.
    
37. What is API contract testing?
    Validating client-server agreement.
    
38. What is data-driven API testing?
    Testing APIs with multiple datasets.
    
39. What is logging in API testing?
    Capturing request and response details.
    
40. What is CI/CD integration?
    Running API tests in pipelines.
    
41. What is assertion?
    Validation of expected results.
    
42. What is TestNG/JUnit used for?
    Test execution and reporting.
    
43. What is Rest Assured?
    Java library for REST API automation.
    
44. What is Python requests library?
    Python library for API calls.
    
45. Why API testing before UI testing?
    To catch backend issues early.
    
46. What is pagination testing?
    Validating page size and page number.
    
47. What is filtering testing?
    Validating query parameters.
    
48. What is sorting testing?
    Validating sorted API responses.
    
49. What is caching in APIs?
    Temporary storage of responses.
    
50. What is cache invalidation?
    Refreshing stale data.
    

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Real-Time API Validation Example (Accenture-Style)

Request

POST /api/login

{

  “username”: “accentureUser”,

  “password”: “test@123”

}

Response

{

  “token”: “abc456”,

  “expiresIn”: 3600

}

Validations

• Status code = 200
  
• Token is not null
  
• Token expiry is valid
  
• Token used in secured APIs
  

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Automation Snippets (Expected Knowledge)

Postman – Basic Test Script

pm.test(“Status code is 200”, function () {

  pm.response.to.have.status(200);

});

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Rest Assured (Java)

given()

.contentType(“application/json”)

.body(payload)

.when()

.post(“/login”)

.then()

.statusCode(200);

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Python Requests

import requests

response = requests.get(url)

assert response.status_code == 200

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SoapUI – XPath Assertion

//token != ”

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Scenario-Based Accenture API Testing Interview Questions (15)

1. API returns 200 but wrong data – how do you detect?
   
2. Duplicate transaction created – how do you test this?
   
3. API accepts invalid input – is it a defect?
   
4. Token expired but API still works – security issue?
   
5. API returns 500 for client error – correct behavior?
   
6. API slow during peak hours – what testing is required?
   
7. Partial data saved after failure – how to validate rollback?
   
8. API works in Postman but fails in application – why?
   
9. Same request returns different responses – reason?
   
10. Unauthorized user accesses data – how to test?
    
11. Schema change breaks consumers – how to prevent?
    
12. API fails only in production – possible causes?
    
13. Rate limiting not implemented – impact?
    
14. API timeout occurs – how to test?
    
15. Backend updated but UI shows old data – where is the issue?
    

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How Accenture Interviewers Evaluate API Testing Answers

Accenture interviewers typically look for:

• Clear understanding of API fundamentals
  
• Ability to explain real project scenarios
  
• Practical Postman knowledge
  
• Logical and structured thinking
  
• Simple, confident communication
  

👉 Clear explanations with examples score higher than complex theory.

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Accenture API Testing Interview Cheatsheet

• Master REST basics & status codes
  
• Practice Postman daily
  
• Validate response body, not just status
  
• Prepare real-time examples
  
• Understand enterprise project scenarios
  

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FAQs – Accenture API Testing Interview Questions

Q1. Is API testing mandatory for Accenture QA roles?
Yes, basic API testing knowledge is expected.

Q2. Is Postman enough for Accenture interviews?
Yes, for manual testing roles.

Q3. Do freshers need automation knowledge?
Not mandatory, but basic awareness helps.

Q4. Biggest mistake candidates make?
Only checking HTTP status codes.

Q5. How to prepare quickly for Accenture API interviews?
Practice CRUD APIs and revise real-time scenarios.