Amazon Kendra is an easy-to-use intelligent search service that allows you to integrate search capabilities with your applications so users can find information stored across data sources like Amazon Simple Storage Service , OneDrive and Google Drive; applications such as SalesForce, SharePoint and Service Now; and relational databases like Amazon Relational Database Service (Amazon RDS). Using Amazon Kendra connectors enables you to synchronize data from multiple content repositories with your Amazon Kendra index. When end-users ask natural language questions, Amazon Kendra uses machine learning (ML) algorithms to understand the context and return the most relevant answers.
The Amazon Kendra’s S3 connector supports indexing documents and their associated metadata stored in an S3 bucket. It’s often the case that you want to make sure that applications running inside a VPC have access only to specific S3 buckets and in many cases the connection must not traverse the internet to reach public endpoints.

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