a+ certification

[Hid_Enigma]

Did a quick search here for a+ and it came up with no posts. I know someone has probably asked this and that there are posts here about the a+ cert. But what is on the a+ certification. I have two sample tests that cover cleaning and maintence and basic computer troubleshooting. Is there anything else I would need to know for the a+ essentials.
Thanks in advance
Enigma