Firewalls, IDS/IPS, proxies and protective security services

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Compare firewall technologies and rule-processing concepts, including packet filtering, stateful inspection, application-aware filtering, next-generation firewalls and unified threat management features.
Explain the purpose and deployment of IDS and IPS technologies, including network-based and host-based approaches, signature-based detection and anomaly- or behavior-based detection.

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Explain protective network services such as URL filtering, DNS filtering, secure web gateways, email security gateways, sandboxing and web application firewalls.

Apply access-control logic to security policies by evaluating permit, deny, implicit deny, rule order, source and destination criteria, protocol and port matching, and logging.

Determine suitable placement of firewalls, IDS/IPS, proxies and protective services at the perimeter, in a DMZ, between internal segments or in cloud and hybrid environments.

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