フリー問題

問題文

In an explicit web proxy deployment on PAN-OS, how does the client's request reach the firewall?

選択肢

1. The firewall advertises itself through the routing protocol so that clients discover it, and each client then sends its requests to the address it learned.
2. The request carries the destination address of the web server, and the firewall intercepts it on the path either by sitting inline or by having the traffic steered to it, so nothing has to be configured on the client.
3. The client resolves the destination through the firewall's DNS proxy, which returns the firewall's own address for every name so that the session is always established with the proxy.
4. The client is configured to send its requests to the proxy, so the request carries the destination address of the proxy itself.