Which statement is true regarding class and variable naming conventions?

Class names and variable naming conventions in Puppet are bound by specific rules to maintain clarity and functionality. The correct understanding of these conventions indicates that class names cannot start with an underscore. This reinforces a clean naming structure for classes, which is important for code organization and readability. Meanwhile, variables, which serve different purposes and have different contexts within Puppet manifests, can indeed start with an underscore. This flexibility allows developers to use underscores for private variables or for specific naming patterns without conflicting with the class name conventions.

Furthermore, class names typically follow a specific format which includes capitalizing the initial letters and avoiding starting with an underscore, which helps distinguish them from regular variables. In contrast, variables being able to start with an underscore allows them to be defined in a way that clearly indicates that they are intended for internal use or for specific utilization within the scope they are defined.

Thus, the answer is grounded on the established Puppet conventions that promote consistency and prevent naming conflicts, ensuring that class names and variable names are distinguishable and follow clear, specific patterns within the codebase.