Free Cisco 350-501 SPCOR Actual Exam Questions - Question 11 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?
Actually, I think D makes more sense here. The messages point out failures specifically for Level 2 PDUs only, and there’s no clear evidence of Level 1 authentication failing. If both levels were failing, we’d expect the log to mention Level 1 too, but it’s silent on that. So the issue seems isolated to Level 2 neighbors, not both or just Level 1. This fits better with the error output shown, where the authentication problem is only flagged for Level 2 PDUs.
Guessing A here because the message specifically points out Level 2 failing first and then Level 1. That sequence seems important and rules out B since it implies simultaneous failure for both levels. Also, C and D focus on one level only, so they don’t line up with the message showing a clear order of failures. The key detail is that Level 2 fails before Level 1, so A fits best with that observation.
B tbh, the message clearly shows authentication failures for both Level 1 and Level 2 PDUs, so it can't be just one level like in C or D. That makes B the most fitting choice here.
Probably B. The message mentions failure for both Level 1 and Level 2 PDUs, so it’s not limited to just one level. That seems to rule out C and D. Also, since the failure is happening for both levels, A doesn’t fit because it says Level 2 first then Level 1. This looks like a complete authentication failure for both levels, which matches option B.
Maybe C. The logs show issues with Level 1 PDUs but not Level 2, so the failure seems limited to Level 1 authentication.
D imo