JNCIP-SEC: Juniper Networks Certified Professional – Security (2024) — Question 21

Which two statements are correct about mixed mode? (Choose two.)

Answer options

• A. IRB interfaces cannot be used to route traffic.
• B. Layer 2 and Layer 3 interfaces can use separate security zones.
• C. IRB interfaces can be used to route traffic.
• D. Layer 2 and Layer 3 interfaces can use the same security zone.

Correct answer: A, B

Explanation

The correct answers are A and B. IRB interfaces indeed cannot route traffic, which aligns with statement A, and Layer 2 and Layer 3 interfaces can have distinct security zones, as stated in B. Conversely, C is incorrect because IRB interfaces are not capable of routing, and D is false since Layer 2 and Layer 3 interfaces can be configured to operate in separate security zones.