[Kesty]

The problem with all this "advices" is that they boil down to "just study".

I agree that been prepared for an interview is a good thing, if you are ready and have studied you show that you are willing and that you put in the effort.

But what about people that are currently working ?

You are trying to get the best programmer, and chances are is that the best programmers out there are currently working (minus a small percentages of great programmer that are in between jobs, or that spent the last period on consulting or personal projects) so you automatically put people that are currently working and can't prepare for the interview as well as the other at a disadvantage and those are the people that you are probably most interested in.

To me it seems that in this world the only interview process is solely targeted at young people fresh out of college.

[ubercode5]

It depends on your schedule, but prioritize time to study every day in your down time. You don't have to do a "night before the test cram session" all the time, just a little every day and within a few months you'll find yourself much more prepared.

[bogomipz]

Advice is plural not "advices."