Buying Certification?

There is this guy that I know in another country, he told me he is MCSE certified. But the weird thing is that he don't know anything about windows at all. He told me he started off as an System Administrator (you should know AD if u start as SA) and build it to where he is today.

But surprisingly, the other day, when we had some AD issues, he asked my friend who has no knowledge on AD at all. Then my friend had to ask me as I know some of the settings. But really shame, how can a person so called certified with MCSE don't know AD? Did he buy his cert?