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Which of the following is the correct HTTP response status line for a 422 Unprocessable Entity?

easy📝 Syntax Q3 of 15
Rest API - HTTP Status Codes
Which of the following is the correct HTTP response status line for a 422 Unprocessable Entity?
AHTTP/1.1 422 Syntax Error
BHTTP/1.1 422 Entity Not Processed
CHTTP/1.1 422 Unprocessable Entity
DHTTP/1.1 422 Invalid Request
Step-by-Step Solution
Solution:

  1. Step 1: Recall standard HTTP status line format

    The status line format is HTTP/version status-code reason-phrase. The official phrase for 422 is 'Unprocessable Entity'.

  2. Step 2: Verify the exact phrase

    Only HTTP/1.1 422 Unprocessable Entity uses the correct phrase 'Unprocessable Entity' matching the HTTP standard.

  3. Final Answer:

    HTTP/1.1 422 Unprocessable Entity -> Option C

  4. Quick Check:

    Correct phrase for 422 = Unprocessable Entity [OK]
Quick Trick: 422 status phrase is exactly 'Unprocessable Entity' [OK]
Common Mistakes:
  • Changing the official reason phrase
  • Using 'Invalid Request' instead of 'Unprocessable Entity'
  • Mixing status code with wrong phrases

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