You have a Windows Server Update Services (WSUS) server named Server1. Server1 synchronizes from Microsoft Update.
You plan to deploy a new WSUS server named Server2. Server2 will synchronize updates from Server1. Server2 will be separated from Server1 by a firewall.
You need to identify which port must be open on the firewall so that Server2 can synchronize the updates.
Which port should you identify?
A. 8530
B. 3389
C. 80
D. 443
