This is Security+.
do the PA while using this quizlet to check your answers: https://quizlet.com/546979828/c172-pre-assessment-flash-cards/
use this study guide: https://drive.google.com/file/d/1mgo-OBPx24RTJ46Qay2WUzg8P3CGRmO0/view (I didn't watch any of the videos but you can if you want)
as well as these quizlets: https://quizlet.com/class/17219163/https://quizlet.com/649653020/wgu-network-and-security-foundations-c172-network-commands-flash-cards/?x=1qqt
then do the practice test in the course tips section. A few students said they only used the course material for the Network media and OSI activity where you drag and drop the devices to whichever OSI layer it belongs to which was helpful on the test. After that you should be able to fly through the OA in like 20 mins or less, especially if you're A+ and Net+ certified already. There's a good amount of OSI model, network topologies, and network commands questions so just be ready for that. Before the test do a quick google search on what a retention policy and IAM is and you're set