In the given Puppet class example, what error occurs due to resource title duplication?

When there is resource title duplication in a Puppet class, a compilation error occurs during the compilation phase. Puppet requires each resource title to be unique within its scope. If a class defines multiple resources with the same title, this conflicts with Puppet’s design rules, resulting in an inability to compile the catalog successfully.

During the compilation phase, Puppet analyzes the manifest files and attempts to build a catalog of resources to be managed. When it encounters duplicate titles, it cannot resolve which resource to apply, leading to an immediate halt of the compilation process and generating an error.

This behavior is crucial because it ensures that Puppet can manage resources in a clear and predictable manner. By enforcing unique titles, Puppet prevents ambiguity and potential conflicts during the execution of the defined resources. This design choice helps maintain the integrity and reliability of Puppet-managed infrastructures.