RHCE Rapid Track Course

[Jim]

Hi

My work scheduled me to take this course with the Exam on day 5 in a couple
of weeks. I have been out of the linux world for a while until I started
this new job at my company a couple of weeks ago. I am looking for
suggestions to prepare for this class and the test. Is the below link a good
starting point?
https://www.redhat.com/training/rhce/examprep.html

is there any books I should get? 

Also, where can I find updated info on PAM administration? everything I find
seems to be dated.

Thank You,
Jim