Click pixel vs impression pixel
Hi,
I am going through SPP videos on AAM.
Section : AAM Advertiser Tagging and Tracking has a video "Tagging Media Ads".
It discusses Click pixel and impression pixel.
1. Is it that Impression is the advertisement and on clicking the Impression, user will be navigated to the actual web site?
2. What exactly is a pixel? Is it an area of web site where we want to track the activity, like an MBox? Or pixel is the Java Script code?
3. It it that a Pixel could be either Click pixel or impression pixel and there is no third variety?
Kindly suggest.
Thanks,
Rama.