JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 15

Which three protocols support BFD? (Choose three.)

Answer options

• A. RSTP
• B. BGP
• C. OSPF
• D. LACP
• E. FTP

Correct answer: B, C, D

Explanation

BFD (Bidirectional Forwarding Detection) is designed to work with protocols that require fast failure detection, which includes BGP (Border Gateway Protocol), OSPF (Open Shortest Path First), and LACP (Link Aggregation Control Protocol). RSTP (Rapid Spanning Tree Protocol) and FTP (File Transfer Protocol) do not utilize BFD for their operations.