I registered on oDesk for a long time but I just taken some oDesk Readiness Test this month. The exam is just a basic test that oDesk user must know to take the service full potential. Also, their are link provided in every question in case the tester has a second thought about their answer. In case your too hasty to start your online career and don't want to read the basics, then this is the answer on the test with no particular order.