You have a deployment of System Center Configuration Manager (Current Branch).
You have the servers shown in the following table..
You have one subnet that contains all the servers and several subnets that contain client computers. A firewall restricts network traffic to the server subnet.
You install a new server named CM03 that runs Windows Server 2016. You install Windows Server Update Services (WSUS) on CM03 by using the default options. You configure CM03 as the software update point.
You need to ensure that the client computers can access the software update point.
Which port should you open on the firewall?
A. 80
B. 443
C. 8080
D. 8530
References:
https://technet.microsoft.com/en-us/library/hh427328.aspx#BKMK_PortsSUP-WSUS