Palo Alto Networks Certified Network Security Engineer (PCNSE) — Question 384

An engineer has been asked to limit which routes are shared by running two different areas within an OSPF implementation. However, the devices share a common link for communication.

Which virtual router configuration supports running multiple instances of the OSPF protocol over a single link?

Answer options

• A. ASBR
• B. OSPFv3
• C. ECMP
• D. OSPF

Correct answer: B

Explanation

The correct answer is B, OSPFv3, as it supports running multiple OSPF instances on the same link, which is essential for isolating routing information between areas. Options A (ASBR) and D (OSPF) do not provide this capability, as they pertain to different OSPF functionalities, while C (ECMP) refers to Equal-Cost Multi-Path routing, which is not relevant to running multiple OSPF instances.