Exam Cram: The CompTIA® Security+ Cram Sheet
This Cram Sheet contains the distilled, key facts about the CompTIA Security+ exam. Review this information as the last step before you enter the testing center, paying special attention to those areas where you think you need the most review.
Domain 1.0: Network Security
1. Firewalls separate external and internal networks and include the following types:
• Packet-filtering firewalls (network layer, Layer 3)
• Proxy-service firewalls, including circuit-level (session layer, Layer 5) and application-level (application layer, Layer 7) gateways
• Stateful-inspection firewalls (application layer, Layer 7)
2. Network intrusion detection systems (NIDSs) are designed to catch attacks in progress within the ...
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