Additional Study Tools T he following sections are arranged by categor y and sum marize the sof t ware and other goodies you'll fi nd from the companion website. I f you need help with installing the items, refer to the installation instructions in the "Using the Study Tools" section of this appendix. The additional s tudy tools can be found at www.sybex.com/go/ netplusrg2e . Here, you will get ins truc tions on how to download the f iles to your hard drive. Sybex Test Engine T he fi les contain the Sybex test engine, which includes t wo bonus practice exams.