JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 21

You are asked to create a new firewall filter to evaluate Layer 3 traffic that is being sent between VLANs.
In this scenario, which two statements are correct? (Choose two.)

Answer options

• A. You should create a family Ethernet-switching firewall filter with the appropriate match criteria and actions.
• B. You should apply the firewall filter to the appropriate VLAN.
• C. You should create a family inet firewall filter with the appropriate match criteria and actions.
• D. You should apply the firewall filter to the appropriate IRB interface.

Correct answer: C, D

Explanation

The correct answers are C and D because a family inet firewall filter is necessary for handling Layer 3 traffic, and applying it to the IRB interface is essential for inter-VLAN communication. Options A and B are incorrect as they refer to Ethernet-switching and VLAN application, which are not appropriate for Layer 3 traffic evaluation.