Which IP address indicates the master DNS server for a secondary forward zone?

The identification of the master DNS server for a secondary forward zone involves recognizing the IP address that is typically designated as the primary source of DNS information for the zone. In the context of DNS, a secondary forward zone is used to forward DNS queries to another DNS server that holds the authoritative records.

The address 192.168.0.11 is likely chosen because, within a network configuration, it represents a valid private IP address that could be assigned to the master DNS server. This IP would typically be configured on a primary DNS server that holds the DNS records for the domain. Secondary servers, in this case, would reference this master server for DNS resolution and updates.

The other addresses—like 192.168.1.1, 208.67.220.222, and 192.168.0.15—may serve different roles within a network or may not be appropriately assigned as the master server for the specific context of a secondary forward zone, making them less suitable as an answer for this particular question. Thus, the selection of 192.168.0.11 conveys that it is being specified to point to the authoritative DNS server that manages the necessary records for forwarding requests effectively.