There are a total of 4 specialist training sectors in the overall A+ programme, of which you’ll need certification in two subjects for competency in A+. We would advise however that limiting yourself to 2 out of the 4 subjects available could leave gaps in your knowledge. At least learn about all four – you’ll be glad you did when it comes to interview time.
CompTIA A+ without additional courses will allow you to mend and maintain computers and Macs; ones that are generally not connected to a network – which means the home or small business market.
If you would like to be the person who works for a larger company – fixing and supporting networks, you should include CompTIA Network+ to your training package, or alternatively look at doing an MCSA or MCSE with Microsoft in order to have a deeper understanding of the way networks work.
Always expect an authorised exam preparation system as part of your training package.
Avoid depending on non-official exam papers and questions. The type of questions asked can be completely unlike authorised versions – and this leads to huge confusion once in the actual exam.