As an enterprise you, have decided to use Cisco Umbrella (Open DNS) services for all public DNS requests.
In which two ways can you ensure that all ONS Clients (endpoints) use this service for external requests only? (Choose two)
A . Install the Umbrella server in your data center that will provide these services locally.
B . Use DHCP to push the Open DNS servers to the endpoints.
C . Configure the OpenDNS servers as forwarders on your internal DNS servers.
D . Install the Umbrella client on all the supported operating Systems and configure it appropriately.
E . Configure your internal DNS server as forwarders on the OpenDNS servers.
F . Use DHCP to push a proxy DNS Server to the endpoints that would chain the external requests to OpenDNS servers for resolution.
G . Install the Umbrella proxy server on all the supported operating systems and configure it appropriately.
Answer: CD