JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 69

You are asked to explore deploying IS-IS in your network.

What are two considerations in this scenario? (Choose two.)

Answer options

• A. TLVs are not required to support IPv4 reachability.
• B. TLVs are not required to support IPv6 reachability.
• C. TLVs are required to support IPv6 reachability.
• D. TLVs are required to support IPv4 reachability.

Correct answer: C, D

Explanation

The correct answers are C and D because TLVs (Type-Length-Value) are needed for both IPv4 and IPv6 reachability in IS-IS deployments. Options A and B are incorrect as they state that TLVs are not required, which contradicts the requirements for supporting reachability for these IP versions.