Reddit reviews Mike Meyers’ CompTIA Security+ Certification Passport, Fourth Edition (Exam SY0-401) (Mike Meyers' Certficiation Passport)

This is the version I passed! It was heavier on simulations than the previous CompTIA ones - since I don't feel comfortable saying a specific number, I would be prepared for more than, say, Network+.

The other big help I had was Mike Meyers' Passport for Security+ (http://smile.amazon.com/dp/0071832149) - I like books with a lot more crunch than fluff. If you have a Kindle and a few hours to review sticky spots, I'd recommend downloading it!

If you are doing okay on the WGU-provided stuff, however, just be calm, take your time on the sims, and you'll one-shot it. You do have to think a bit more out of the box than you did with A+ and N+, but it wasn't unreasonable.

Best of luck!

Try these:

Network+

Security+

Linux+

If you get the digital versions of these they're each less than $20. Also they come with a code to get the Total Tester software for net+ and security+, which has lots of practice questions. That's pretty much all I used to pass Net+ on monday. The passport series just gives you what you actually need to pass the exam, and their written pretty well.

There is some stuff, at least in the most recent Network+ exam, that covers weird, old tech. stuff that really isn't used anymore like Token Ring, which I believe wasn't in some of the past exams and was reintroduced. Or it might have been ISDN. But anyway, best to get something up to date.

I'm not 100% on the linux one. It was published in 2008 and they have changed the test since, but most of it should still be perfectly relevant.

Alternatively you could try studying Kali Linux specifically. Good thing with lots of nice tools for security and penetration testing. The book is online and completely free. That should teach you most of what you need to know for linux+.