You need to go through the classes before the test, they will teach you everything on it.
Here's the class for ICS-100. https://emilms.fema.gov/IS100b/index.htm
And the course list for all the others. https://training.fema.gov/is/crslist.aspx
Do you have a question or an otherwise constructive contribution to the forum? Because generally, insulting an entire profession is not good way to start a discussion. There are better ways to talk about health issues in EMS than calling us all "fat slobs"...