JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2021) — Question 17

Which two routing protocols make use of a designated router, or pseudo node, to represent a broadcast network? (Choose two.)

Answer options

• A. BGP
• B. OSPF
• C. MPLS
• D. IS-IS

Correct answer: B, D

Explanation

The correct answers are B (OSPF) and D (IS-IS) as both protocols use a designated router to manage and optimize routing information within broadcast networks. A (BGP) is a path vector protocol used for inter-domain routing and does not utilize designated routers, while C (MPLS) is a method for speeding up network traffic flow and does not involve designated routers in its operation.