ITIL exam number confusion

Hi, I am supposed to take the ITIL-EXIN - EX0-101 ITIL Foundation v.3 Certification Exam. Now I have been looking at study guides and exam **** etc and I was wondering if EX0-101 is the same as Pearson's EX0-001? Because I find material on both...Do they both have the same questions in the exams? what is the difference?