When creating a new forwarding lookup zone, what zone name should be used to represent the root zone?

The correct naming for the root zone in a DNS (Domain Name System) configuration is represented by a period (dot). This dot signifies the top level of the DNS hierarchy. In DNS terminology, the root zone is essentially the starting point for all DNS queries or lookups, and it is the foundation from which all other domains branch out.

When specifying the root zone in the DNS configuration, using a simple period (.) indicates that it represents the root level of the DNS namespace. Therefore, when you create a new forwarding lookup zone and intend to refer to the root zone, employing this notation is both standard practice and technically correct.

While other options, like "root" or "empty string," might seem viable, they do not accurately convey the concept of the root in DNS terms. The use of a period is universally recognized and required for proper DNS operations, ensuring that queries are directed towards the highest point in the DNS hierarchy.