A Cisco Umbrella virtual appliance (VA) is a lightweight virtual machine that acts as a DNS forwarder in your network. It forwards internal DNS queries to Umbrella and provides Umbrella with the internal IP address and hostname of the device that made the request. This allows Umbrella to apply policies and report on traffic based on the subnet, hostname, or user identity of the device1. The other options are not relevant for this scenario. Tenant control features are used to limit access to specific instances of cloud applications, such as Microsoft 365 or Google G Suite2. The Microsoft Active Directory Connector is used to provision users and groups from Active Directory to Umbrella, not to provide IP address information3. An internal domain is a domain that is resolved by your own DNS server, not by Umbrella, and is used to bypass Umbrella for domains that are only accessible within your network4. References: * 1: Deploy Virtual Appliances - Umbrella User Guide * 2: Manage Tenant Controls - Umbrella SIG User Guide * 3: Connect Active Directory to Umbrella to Provision User and Groups * 4: Domain Management - Umbrella User Guide