[st553]

My recommendation for preparing for tech interviews at the big tech companies is to answer as many questions as you can from here:

http://www.programcreek.com/2012/11/top-10-algorithms-for-co...

Use coderpad.io to write code for practice passing the phone screen.

[collyw]

My recommendation is to write a polite reply saying why these are a waste of time and why you won't be doing it, and ask them if they are still interested in interviewing.

[madracerx]

I actually did that a few times, most of them run away from me. I said I don't have patience to do linked lists, determine if 4 points form a square type of questions, etc, as that does not prove anything. It is easy to game the system to pass these questions, but then most people that passes writes the most horrible un-maintainable code.