[Adwords] How the quality of other pages affect the landing page's quality score?

[ikuret75]

Hi guys,
I hear that to get a high quality score, the landing page has to have good content. So squeeze kind of a page is not recommended (though you can have it). I understand that.

Also, if there is a site map it is better, and put a link to your home page helps your quality score go up (more pages/content etc) . I understand that too.

My question is, though I know nobody knows for sure, but does Google care about what other pages linked from the landing page are?

For example, if the other pages within the site (traceable from the landing page) were not suitable for Adwords according to the Adwords guideline, would that lower your landing page's quality score?

Or, does only the landing page's quality matter?

Thanks!