During IS-IS area authentication, which kind of IS-IS packet will carry authentication information?

During IS-IS area authentication, which kind of IS-IS packet will carry authentication information?
A . Level-1 IS-IS SNP and LSP packets
B . Level-2 IS-IS SNP and LSP packets
C . Level-1 IS-IS Hello packets
D . Level-2 IS-IS Hello packets

View Answer

Answer: A