Which two XML files should a developer import using the site-specific Merchant Tools modules instead of the Administration?

The correct answer highlights the specific XML file related to search functionalities within the Salesforce Commerce Cloud ecosystem. Search Settings XML is indeed tailored for site-specific configurations and is designed to be managed through the Merchant Tools interface. This allows developers to fine-tune search relevance, indexing, and other critical aspects of the search experience tailored specifically to the site's needs.

Using Merchant Tools for Search Settings helps ensure that the configurations are applied uniquely to the site in question, which is vital for maintaining optimal search performance and user experience. Site-specific configurations are best managed through the Merchant Tools to ensure they are isolated from global settings that may not apply to every site.

In contrast, other XML files such as Site Jobs and Promotions can be managed through the Administration interface. The Administration panel typically suits broader or system-wide configurations that are not as specifically tailored to the individual site configurations as Search Settings would require. System type extensions serve a similar purpose, as they often involve overarching system settings that would not necessitate the same level of site specificity.

This distinction emphasizes the importance of managing certain types of configurations in their appropriate contexts to ensure effective site management and performance in Commerce Cloud implementations.