Test Question/Answer Clarity AWS Partner Accreditation: Technical

You possibly are correct as a managed service personalise is purpose built, however given that isn't in the option and this is more of a database question, Amazon Netpune (the correct answer ) has a use case of a recommendation engine. See https://aws.amazon.com/neptune/machine-learning/

Amazon Neptune: Product recommendation Traditional recommendations use analytics services manually to make product recommendations. Neptune ML can identify new relationships directly on graph data and easily recommend the list of games a player would be interested to buy, other players to follow, or products to purchase.