Knowledge Base Search results can be sorted by which of the following? (Choose three.)
Sort the items in a knowledge base or search results list using the Sort by options at the top of the list.
The header displays the number of search results, which updates as the user selects and de-selects filters.
When you navigate away from the search results page and then return, your last sort selection is retained.
https://www.servicenow.com/docs/bundle/xanadu-servicenow-platform/page/product/knowledge-management/concept/knowledge-service-portal-search.html