Cisco Firewall Solution with Policy Language Support
Short answer
D Zone-Based Policy Firewall (ZFW) supports configuration via Cisco Policy Language through its zone-based architecture.
Question
Key Takeaways
This question tests knowledge of Cisco firewall deployment models, specifically distinguishing ZFW's zone-based policy language from traditional interface-based firewalls.
The Zone-Based Policy Firewall (ZFW) is the Cisco firewall solution that utilizes Cisco Policy Language for defining traffic inspection policies between security zones.
Common mistake: Learners often select NGFW because it is the modern standard, but NGFWs typically use GUI-based or API-driven policy structures rather than the specific 'Cisco Policy Language' associated with ZFW configuration.
Expert Analysis
Why the Answer Is Correct
Zone-Based Policy Firewall (ZFW), also known as ZSF, introduced a new paradigm to Cisco IOS firewalls by moving away from the complex interface-based Access Control Lists (ACLs). Instead, ZFW uses a policy language where interfaces are assigned to zones, and policies are defined between these zones. This allows for more granular control over inter-zone traffic using a structured configuration syntax often referred to in the context of Cisco Policy Language.
Why the Other Options Are Wrong
NGFW (Next-Generation Firewall) refers to a broader category of firewalls that include application awareness and identity features; while they may support various management methods, the term 'Cisco Policy Language' is historically tied to the ZFW configuration model on IOS devices. CBAC (Context-Based Access Control) is an older, legacy feature that operates on a per-interface basis using ACLs, not a zone-based policy language. IPS (Intrusion Prevention System) is a detection/prevention module, not a firewall solution type itself, and does not define the fundamental configuration language of the firewall perimeter.
Community Comment Notes
The community consensus strongly supports option D, with users noting that ZFW changes the configuration model to a zone-based approach. As one commenter noted, "Interfaces are assigned to zones, and inspection policy is applied to traffic that moves between the zones," which aligns with the use of policy language for defining these relationships.
Exam Strategy
When studying Cisco IOS firewall technologies, distinguish between legacy features like CBAC and the more modern Zone-Based Policy Firewall. Understand that ZFW simplifies policy management by grouping interfaces into zones rather than applying ACLs directly to interfaces.
Frequently Asked Questions
What is Cisco Policy Language in the context of ZFW?
Is NGFW the same as ZFW?
Community Votes
100% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 3 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 3
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devildog 👍 2 Answered DD. "Zone-Based Policy Firewall (also known as Zone-Policy Firewall, or ZFW) changes the firewall configuration from the older interface-based model to a more flexible, more easily understood zone-based model. Interfaces are assigned to zones, and inspection policy is applied to traffic that moves between the zones. Inter-zone policies offer considerable flexibility and granularity, so different inspection policies can be applied to multiple host groups connected to the same router interface. Firewall policies are configured with the Cisco Policy Language (CPL), which employs a hierarchical structure to define inspection for network protocols and the groups of hosts to which the inspection can be applied." https://www.cisco.com/c/en/us/support/docs/security/ios-firewall/98628-zone-design-guide.html
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devildog 👍 1D. appears to be correct
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klu16 👍 1 Answered DLooks ok to me.
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