300-710 · Question #429
300-710 Question #429: Real Exam Question with Answer & Explanation
The correct answer is A: to enable transparent bridging between two Layer 2 interfaces. Integrated Routing and Bridging (IRB) allows a next-generation firewall to bridge traffic between Layer 2 interfaces while also supporting routing between VLANs or subnets. This feature is commonly used in transparent (bridge) mode deployments where you want the firewall to act l
Question
What is the purpose of the IRB feature in next-generation firewall?
Options
- Ato enable transparent bridging between two Layer 2 interfaces
- Bto block routing between two Layer 3 interfaces
- Cto allow multiple physical interfaces to be part of the same VLAN
- Dto configure NAT in transparent mode
Explanation
Integrated Routing and Bridging (IRB) allows a next-generation firewall to bridge traffic between Layer 2 interfaces while also supporting routing between VLANs or subnets. This feature is commonly used in transparent (bridge) mode deployments where you want the firewall to act like a bump in the wire, forwarding traffic at Layer 2 but still providing inspection and policy
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