A company has a forest with 4 sites. Subnets are as follows:
MainOffice 172.16.1.0 Subnet: 255.255.255.0 Gateway 172.16.1.254
Site1 192.168.12.0 Subnet: 255.255.255.0
Site 2 192.168.13.0 Subnet: 255.255.255.0
Site 3 192.168.14.0 Subnet: 255.255.255.0
Site 4 192.168.15.0 Subnet: 255.255.255.0
You add a new server to the MainOffice and it needs to be able to communicate to all sites.
Which route command would you run?（）

Your network contains an Active Directory domain named contoso.com. The domain contains 100 user accounts that reside in an organizational unit (OU) named 0U1. You need to ensure that a user named User1 can link and unlink Group Policy objects (GPOs) to OU1. The solution must minimize the number of permissions assigned to User1.
What should you do?（）