[Solved] Which of these situations would most likely cause a 400 Bad Request response from a REST API? — Ans: Sending a JSON body with missing required fields | Rest API

Rest API - HTTP Status Codes

Which of these situations would most likely cause a 400 Bad Request response from a REST API?

ASending a JSON body with missing required fields

BRequesting a resource that does not exist

CUsing an expired authentication token

DServer experiencing high load and timing out

Step-by-Step Solution

Solution:

Step 1: Identify causes of 400 Bad Request
Missing required fields in the request body means the client sent invalid data.
Step 2: Differentiate from other errors
Requesting a missing resource causes 404, expired token causes 401, server load causes 503.
Final Answer:
Sending a JSON body with missing required fields -> Option A
Quick Check:
Missing fields = 400 Bad Request [OK]

Quick Trick: Missing or wrong data triggers 400 Bad Request [OK]

Common Mistakes:

Master "HTTP Status Codes" in Rest API

9 interactive learning modes - each teaches the same concept differently

More Rest API Quizzes

Which of these situations would most likely cause a 400 Bad Request response from a REST API?