Is there an alternative CCNA non-paid/cheaper test exam simulator similar to Boson test exam? I'm currently short on cash, and if have been to paid the CCNA exam certificate it really put a high expense dent on me since it cost about $100 for the test exam.

Is there an alternative cheap or free version of the boson test exam which I'm able to practice test CCNA question, and get ready for the exam?

Any similar study materials recommended is highly appreciated :)