[jacquesm]

To me this looks like an endless series of 'gotcha' questions that for the most part are either in the totally obvious or terribly obscure category.

[antidaily]

Agreed. I'm not even sure what this means:

Q: What methods do you know to realize columns?

[gmurphy]

It means "If the design calls for having text flow across side-by-side columns (like in newspapers or magazines), what ways are there to code it?"