Which term matches the description: Defines subnet for scanning unmanaged computers?

• A. Network Mask
• B. IP Address Range
• C. Operating Systems
• D. UUID

Answer: (A)

Defining a subnet for scanning unmanaged computers hinges on the network mask. The network mask specifies which bits of an IP address identify the network portion, which in turn defines the subnet's boundaries. By applying this mask, the scanning tool knows exactly which range of addresses belongs to that subnet and should be included in the scan. This boundary is what makes the network mask the correct term. An IP address range could describe which addresses to scan, but it doesn’t inherently establish the subnet boundary; operating systems have no role in subnet definitions, and a UUID is just a device identifier, not related to subnet scoping.