Tip Tuesday - Are your posts and comments on LinkedIn searchable by google?

How does my activity on LinkedIn show up on the rest of the internet, namely Google, Bing, Yahoo searches?

When people are searching for me how public is my activity on LinkedIn? My likes, my comments, my engagement?

What about things that I'm liking and commenting on?

Is there any way to make your articles private LinkedIn doing only? For some reason if anyone wants to do that?