JNCIP-DC: Juniper Networks Certified Professional – Data Center (2023) — Question 4

Which IP fabric underlay protocol provides the highest degree of scalability?

Answer options

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

Correct answer: A

Explanation

IS-IS is designed for large-scale networks and handles a vast number of routes efficiently, making it the most scalable option among the choices. In contrast, RIP is limited to 15 hops, while OSPF and BGP, although scalable, do not match the capabilities of IS-IS in terms of simplicity and speed for large topologies.