JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2023) — Question 38

Which two statements about RSTP are correct? (Choose two.)

Answer options

• A. RSTP is not backwards compatible with STP.
• B. RSTP is backwards compatible with STP.
• C. RSTP permits multiple root bridges within a Layer 2 domain.
• D. RSTP permits only a single root bridge within a Layer 2 domain.

Correct answer: B, C

Explanation

The correct answer is B and C because RSTP is designed to be backwards compatible with STP, allowing for a smooth transition between the two protocols. Additionally, RSTP supports multiple root bridges within a Layer 2 domain, unlike the traditional STP which only allows for a single root bridge.