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Question 32 - 350-501 discussion
Refer to the exhibits:
R1 and R2 are directly connected and IS-IS routing has been enabled between R1 and R2 R1 message periodically Based on this output, which statement is true?
A.
IS-IS neighbor authentication is failing for Level 2 first and then for Level 1 PDUs
B.
1S-1S neighbor authentication is failing for Level 1 and Level 2 PDUs .
C.
IS-IS neighbor authentication is failing for Level 1 PDUs only
D.
IS-IS neighbor authentication is failing for Level 2 PDUs only.
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