২য় বিশ্বযুদ্ধে জার্মানি আত্মসমর্পণ করে ১৯৪৫ সালের-

Question:

Which of the following HTTP status codes indicates that the client must authenticate itself to get the requested response?

Options:

    
• A) 400 Bad Request
    
• B) 401 Unauthorized
    
• C) 403 Forbidden
    
• D) 404 Not Found

Correct Answer: B) 401 Unauthorized

Explanation:

The HTTP status code 401 Unauthorized indicates that the request has not been applied because it lacks valid authentication credentials for the target resource. This response is typically accompanied by a WWW-Authenticate header containing information on how to authorize properly.

Analysis of Incorrect Options:

    
• A) 400 Bad Request: Indicates that the server cannot or will not process the request due to perceived client error, such as invalid request framing or malformed syntax.
    
• C) 403 Forbidden: Indicates that the server understands the request and knows the client's identity, but refuses to authorize it because the client does not have permissions for the resource.
    
• D) 404 Not Found: Indicates that the origin server did not find a current representation for the target resource or is unwilling to disclose that one exists.