Which of the following describes Amazon Publisher Services (APS)? (Select 2)

Amazon Publisher Services (APS) is Amazon's marketplace that directly integrates with over 10,000 websites and apps. This direct integration is achieved by placing code directly on participating publishers' sites and apps, allowing for server-to-server connections. This setup enables publishers to offer their inventory to advertisers through a transparent, header bidding-like environment, often leading to better monetization for publishers and more efficient access to high-quality inventory for advertisers. The option "Invitation-only marketplace allowing select buyers to bid on impressions" is incorrect because APS is a publisher-facing service focused on supply, not a buyer-facing invitation-only marketplace. While there are private marketplace deals, APS itself is about direct integration for a broad set of publishers. "Exclusive supply sources available in the Amazon DSP" is also incorrect; while APS inventory is available through Amazon DSP, APS itself is the marketplace and integration method, not just a label for exclusive supply.