trouble shooting lab for hardware
 

Hi,

I was just wondering if anyone knew of a way to emulate hardware problems in a either a vm lab or as a standalone application.

Goal:

emulate hardware issues in a network for certification purposes.

Secondary Goal:

if possible have list of "plugins" to generate defind issues.

A whish

I would love to locate some free flash cards for net+, sec+, A+

Thanks guys for any points in the correct direction. Google searches just keeps getting me sites that are try to sell classes.