Final answer:
The two methods that measure impressions served in a mobile app are the 1x1 impression tracker and the Mobile tracking ad. So, the option 1 and 2 are correct.
Step-by-step explanation:
Two prevalent methods for measuring impressions served in a mobile app are the 1x1 impression tracker and the Mobile tracking ad.
The 1x1 impression tracker entails embedding a 1x1 pixel image within the mobile app, with each image load counting as a served impression.
This method is commonly employed for quantifying ad impressions.
On the other hand, the Mobile tracking ad utilizes specialized ad tags or Software Development Kits (SDKs) integrated into the mobile app.
These tags or SDKs monitor and record the frequency of ad displays, ensuring precise impression measurements.
Notably, directly delivering mobile creative through Campaign Manager and click tracker ads doesn't inherently gauge impressions served in a mobile app, although they play a role in the broader ad tracking process.
These methods collectively contribute to a comprehensive understanding of ad performance in the mobile environment.
Hence, the option 1 and 2 are correct, the two methods that measure impressions served in a mobile app are the 1x1 impression tracker and the Mobile tracking ad.