When asked to add australia.abctech.corp, what type of entity is being requested?

The correct answer, identifying australia.abctech.corp as a child domain, is based on the hierarchical structure of domains in a domain name system. A child domain is a subdivision within a parent domain. In this context, "abctech.corp" serves as the parent domain, while "australia" is the child domain that falls under it.

This organization allows for a more structured approach to managing multiple entities or divisions within a larger domain. The child domain inherits certain attributes from its parent while also being able to have its own resources and security policies tailored to its specific needs.

In this case, identifying "australia.abctech.corp" as a child domain communicates that it belongs to a specific segment or function of the larger "abctech.corp" organization. Understanding this relationship is crucial for any network management or domain structuring tasks.