I have just passed JN0-102. It has 70 questions. I used Actualtest (JN0-102 version 3.1) but i found about 5 questions same as dumps. I think that there are more than 60 new questions. Some questions are about IPv6 but they are very simple. One question asks the internal link between control plane and data plane of MX series. Some questions are about TCP/IP (OSI and TCP model), routing instance. There is not the simulator question or drag and drop.
Be careful and good luck !