At what positions can a tooltip appear on an element?

Which of the following CSS classes makes a thumbnail image?

Which of the following CSS classes is not available for text alignment?

Which of the following screen sizes in Bootstrap's grid system contains 12 columns?

Bootstrap's grid system allows upto?

Which Bootstrap class is used to position an element at the top of the viewport, from edge to edge?

   ____________ is prototyping and testing a scalable. Secure Distribution Tolerant Mesh Network to protect strategic military assets.
 

Tick the way to add bootstrap to website

Statement 1: Contextual text classes are used to color the text.

Statement 2: Contextual text classes are used to color the anchors (links).

Which of the following is correct about Jumbotron ?