Security+ certifications is one of the very few credible certs available in the area of computer and network security. Other being CCNA Security and CISSP. The certification is offered by Comptia organization, on successful completion of security+ exam. Comptia also offers other certs like A+, Network+, Linux+ and a few more and these certs are widely recognized across USA and sevral other countries. Please check out the site if you are preparing for any of these certifications.

Offers exam simulators for Cisco Certified Network Associate (CCNA), Cisco Certified Entry Network Associate, Interconnecting Network Devices, and Cisco Certified Network Professional certs. Question types include multiple choice, drag and drop, simulations, and scenarios. Free exam cram notes is available for Cisco CCNA and Comptia A+ and Network+.