Explain the CSS box model. What are the differences between the IE and firefox box models if any?

What's the difference between the way PHP and Perl distinguish between arrays and hashes?

What is the difference between PHP running as a 'module' and as a 'CGI'?

What is your expertise in eCommerce software? Which types have you used and how? Give examples.

What are the necessary paths to SEO for a large scale business website buildout?