39 + 36 + 33 + _______ একটি সমান্তর ধারা হলে-

i. ধারাটির সাধারণ অন্তর -3.
ii. ধারাটির 10 ম পদ 12.
iii. ধারাটির ১ম ১টি পদের সমষ্টি 165.
নিচের কোনটি সঠিক?

Question: Which of the following HTTP status codes indicates that the server understands the request but refuses to authorize it?

    
• A) 401 Unauthorized
    
• B) 403 Forbidden
    
• C) 404 Not Found
    
• D) 500 Internal Server Error

Correct Answer: B) 403 Forbidden

Detailed Explanation:

The HTTP 403 Forbidden response code indicates that the client's identity is known to the server, but the client does not have access permissions for the requested resource. Unlike a 401 response, authenticating or re-authenticating will not grant access because the refusal is permanent or tied to application permissions.

Option Breakdown:

    
• 401 Unauthorized: Returned when authentication is required and has either failed or not yet been provided. The user can retry with valid credentials.
    
• 403 Forbidden (Correct): The server knows who you are, but you do not have permission to access the resource.
    
• 404 Not Found: The server cannot locate the requested URL or resource.
    
• 500 Internal Server Error: A generic server-side error indicating that an unexpected issue prevented the request from being fulfilled.