JNCIP-SP: Juniper Networks Certified Professional – Service Provider (2021) — Question 5

Which authentication strategy authenticates IS-IS hello PDUs only?

Answer options

• A. interface authentication
• B. area authentication
• C. domain authentication
• D. level authentication

Correct answer: D

Explanation

Level authentication is the correct answer as it is specifically designed to authenticate IS-IS hello PDUs. The other options, while related to IS-IS authentication, do not specifically target the hello PDUs in their functionality.