@Ramesh Here's a quite simple way to do this with Marketo Forms:
http://jsfiddle.net/sanford/t7xdmf8x/The trick is to create 2 forms: one that just has a big submit button "Yes" and another that has a big button "No." (They do not have any fields.)
Then embed the forms wherever you want this kind of feedback.
The cool thing about doing it this way is reporting is very clear: search for
Filled Out Form activity where Form = "Yes, Relevant" and URL = <whatever URL you're interested in>.
If you have more than one possible poll like this at the same URL, you would have to get a little fancier, more like in my first recommendation where you use munchkinFunction() to log the user's responses.