Which HTTP status code class indicates that further action is needed by the client to fulfill the request (redirection)?

• A. 3xx Redirection
• B. 2xx Successful
• C. 1xx Informational
• D. 4xx Client Error

Answer: (A)

HTTP status codes are grouped into ranges that indicate the result of a request. When the server needs the client to take additional action to complete the request, it uses the 3xx redirection class. These responses tell the client to fetch a different URL, usually provided in the Location header, and then make a new request to that URL. Common examples include 301 Moved Permanently and 302 Found, with others like 303 See Other, 307 Temporary Redirect, and 308 Permanent Redirect that specify how the redirect should be handled. This behavior distinguishes redirection from the 2xx success codes, where the response itself contains the desired resource, and from 4xx client errors, which indicate a problem with the request itself.