Final answer:
Recursive forwarding is the type of DNS forwarding where only the receiving DNS server attempts resolution. This method helps in managing network traffic and ensuring that queries are resolved efficiently.
Step-by-step explanation:
When DNS forwarding is set so that only the DNS server receiving the request attempts resolution (and not the server that forwarded the request), this is called stub forwarding. Stub forwarding is a configuration option available in some DNS servers which directs the server to forward queries to designated forwarder(s) and relies on that forwarder to do all of the recursive query work, without performing recursion itself. This method helps in managing network traffic and ensuring that queries are resolved efficiently.
The type of DNS forwarding where only the DNS server receiving the request attempts resolution is called recursive forwarding. In this type of forwarding, the receiving DNS server acts as both the recursive resolver and the forwarding server. It recursively queries other DNS servers until it obtains the final resolution.
For example, if a client requests to resolve a domain name, the DNS server that receives the request will contact other DNS servers on behalf of the client to find the IP address associated with that domain name. Recursive forwarding helps offload the resolution process from the original DNS server, allowing it to focus on other tasks. It also enhances the efficiency and performance of DNS resolution.