Final Answer:
From a command prompt, run `configuresslproxy server1 443`. Thus the correct option is D.
Step-by-step explanation:
To ensure that Server2 synchronizes updates from Server1, the `configuresslproxy` command needs to be used on Server2. This command configures the SSL proxy settings on Server2 to synchronize updates from Server1 using SSL. By specifying `server1` as the parameter, it instructs Server2 to use SSL to communicate with Server1 for update synchronization. The port 443 is specified in the command, which is the default port for SSL communication.
Using the `configuresslproxy` command with `server1` and the SSL port 443 ensures that Server2 can establish a secure connection to Server1 for update synchronization. This command modifies the necessary settings on Server2 to comply with the SSL requirement set on Server1, allowing for secure communication between the WSUS servers.
In an environment where WSUS servers synchronize updates, ensuring secure communication through SSL is essential for data integrity and security. Configuring the SSL proxy settings using `configuresslproxy server1 443` on Server2 enables it to properly synchronize updates from Server1 over a secure channel, meeting the SSL requirement set on Server1 for WSUS metadata synchronization.