JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2021) — Question 3

Which two statements are correct about the fab interface in a chassis cluster? (Choose two.)

Answer options

• A. Real-time objects (RTOs) are exchanged on the fab interface to maintain session synchronization.
• B. In an active/active configuration, inter-chassis transit traffic is sent over the fab interface.
• C. The fab interface enables configuration synchronization.
• D. Heartbeat signals sent on the fab interface monitor the health of the control plane link.

Correct answer: A, B

Explanation

Option A is correct because real-time objects (RTOs) are indeed exchanged on the fab interface to ensure that sessions remain synchronized between chassis. Option B is also correct as the fab interface facilitates inter-chassis traffic in an active/active setup. Options C and D are incorrect; the fab interface does not directly handle configuration synchronization or health monitoring of the control plane link.