It is natural that you are looking for job and applying to as many positions as are available in the market, however the problem with this approach is, that you don’t get time to tailor your application as per the role.
Although applying left, right & center is not a good idea, but waiting for perfect role and then spending hours making the ideal resume, might get you noticed but will also increase your competition manifold.
While it is a good idea to look for Industry specific roles to help you start with a job that s closest to you subject /specialization, however this approach might lead to omitting many industries which might be a good fit for you.
It is not enough to just prepare frequently asked questions, customizing your answer with relevant example as per the job role boosts your chances in getting the job.