What feature allows the Firebox to handle DNS queries more effectively?

The feature that allows the Firebox to handle DNS queries more effectively is DNS Proxy. This feature enables the Firebox to act as an intermediary for DNS requests made by devices on the network. When a client device queries a domain name, the Firebox can forward the request to an external DNS server and then cache the response. This reduces the need for subsequent queries to be sent to the external server, thereby improving the speed of DNS resolution for repeated requests. Additionally, by managing DNS queries directly, the Firebox can enhance security measures such as filtering or blocking access to certain domains, providing a more controlled browsing environment for users within the network.

While DNS Caching also aids in resolving DNS queries efficiently by temporarily storing previous responses to improve lookup times, it is the DNS Proxy's broader role in handling requests and providing additional security features that makes it a more effective solution in managing and processing DNS queries.