Question: Within Display & Video 360, what statement about mobile in-app and mobile web inventory is correct?
- Marketplace has premium inventory for both mobile web and mobile in-app inventory.
- App-ads.txt protects publishers and advertisers from fabricated mobile in-app and mobile web inventory.
- Creative dimensions work for mobile web and mobile in-app inventory together.
- App collections are available for both mobile web and mobile in-app inventory.
Explanation
Marketplace is the Display & Video 360 inventory discovery area for finding premium publisher opportunities. It supports buying opportunities across different environments, including mobile web and mobile in-app inventory. This makes it the correct module-related statement when comparing these two mobile inventory types. The distinction is about available inventory access, not audience lists, creative sizing, or seller authorization files.
Why the other options are incorrect
App collections apply to app inventory, not both app and mobile web environments.
Creative dimensions are not universally shared because mobile web and app placements can have different available sizes.
App-ads.txt applies to app-based inventory, while ads.txt is used for web-based inventory.
Source for verification
https://support.google.com/displayvideo/answer/9059464
https://support.google.com/displayvideo/answer/7509551
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