Which constructs can you use in a Puppet module for varying service resource behavior based on memory?

The correct choice identifies constructs that can effectively implement conditional logic in Puppet, specifically for varying service resource behavior based on memory. Using if statements allows you to create conditional branches in your Puppet code, enabling different configurations or behaviors depending on the amount of memory available on a system.

The case statement further complements this by providing a clean way to evaluate a single variable against multiple potential values, making it easier to manage varying configurations based on different memory thresholds or categories. Selected cases can guide Puppet to apply specific settings or manage resources based on defined memory conditions.

Although selectors and lambdas are powerful in other contexts, they are not standard constructs used in the same way as if statements or case statements for this specific purpose in Puppet. Therefore, the combination of if statements and case statements is the most appropriate for altering service behavior based on memory conditions.

This clarity in using conditional constructs aids in organizing Puppet code effectively, ensuring that resources are only defined when appropriate conditions are met, ultimately leading to more efficient and manageable infrastructure configurations.