JNCIP-SEC: Juniper Networks Certified Professional – Security (2024) — Question 23

Which two statements are true when setting up an SRX Series device to operate in mixed mode? (Choose two.)

Answer options

• A. A physical interface can be configured to be both a Layer 2 and a Layer 3 interface at the same time.
• B. The SRX must be rebooted after configuring at least one Layer 3 and one Layer 2 interface.
• C. Packets from Layer 2 interfaces are switched within the same bridge domain.
• D. User logical systems support Layer 2 traffic processing.

Correct answer: B, C

Explanation

Answer B is correct because the SRX device requires a reboot to apply the new interface configurations after adding both Layer 2 and Layer 3 interfaces. Answer C is also correct as Layer 2 interfaces operate within the same bridge domain, allowing for efficient switching. Options A and D are incorrect because an interface cannot function as both Layer 2 and Layer 3 simultaneously, and not all user logical systems support Layer 2 processing.