正解:
Install Windows Admin Center on DC1
Step 1: On dc1 locate folder \\dc1.contoso.com\install, start installation, complete Wizard.
Once the install is complete, open a browser from a remote computer and navigate to URL presented in the last step of the installer.
Step 2: On SRV1 use the URL from the installation process, and complete the installation.
Reference:
https://learn.microsoft.com/en-us/windows-server/manage/windows-admin-center/deploy/install