The Now Platform includes two search engines:
- Zing text indexing and search engine
- Default search engine which provides fast results and emphasizes relevancy scoring.
- AI Search
- Provides consumer-grade search capabilities for Service Portal, Now Mobile, and Virtual Agent.
read below doc for more Info
https://docs.servicenow.com/bundle/sandiego-platform-administration/page/administer/search-administration/reference/search-administration.html
https://docs.servicenow.com/en-US/bundle/sandiego-platform-administration/page/administer/search-administration/concept/c_ZingTextSearch.html
Regards
Harish
