LOL - A+ Certifcation Exams have changed in the last 6 months. They aren't very difficult to pass, but there is still a bit too much about old, aged, dead, technology on them. You should have an over all knowledge of the history of PC technology.
I Passed Core hardware with a 100% & Core OS with a 94%
Now i'm going for my MCSE (Microsoft Certified Systems Engineer)
So far it's been slightly challenging.