General purpose guides

Security is critical for providing a safe working environment, and we now need to look at guidelines for vendor diversity, control diversity, technical controls, administrative controls, and the benefits of user training:

  • Vendor diversity: Companies need to be running 24/7, and therefore need to put in place vendor diversity. This may mean that they will get internet access from two different companies so that when one fails, the other can keep the company up and running. Vendor diversity provides both reliability and resiliency.
    • Examples: Firewalls are a mission critical network device that prevent unauthorized access to your network. In the Security+ exam, they tend to be used in a back-to-back configuration.

Get CompTIA Security+ Certification Guide now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.