What is a benefit of server-to-server (S2S) integration s in Amazon DSP?

The correct answer is Measurement on additional placements like Streaming TV ads and mobile app because server-to-server (S2S) integrations in Amazon DSP enable advertisers to track and measure ad performance across a broader range of placements, including Streaming TV ads and mobile apps. These integrations allow for seamless data transfer between Amazon DSP and external systems, ensuring that metrics such as impressions, clicks, and conversions are captured accurately across these non-web-based environments. This enhances the advertiser's ability to measure the effectiveness of campaigns across different devices and platforms. The other options are incorrect because S2S integrations do not specifically provide the ability to use unapproved third-party providers or directly link to a data management platform (DMP) to retrieve hashed records, as those functionalities are handled differently within the platform's ecosystem.