Exam 350-801 Topic 9 Question 349 Discussion

Actual exam question for Cisco's 350-801 exam
Question #: 349
Topic #: 9
Refer the exhibit. Given this "debug isdn q921" output, what is the problem with the PRI?

Suggested Answer: D Vote an answer

If Layer 2 is stable, the router and switch must begin to synchronize with each other. The Set Asynchronous Balanced Mode Extended (SABME) message appears on the display. This message indicates that Layer 2 tries to initialize with the other side. Either side can send the message and try to initialize with the other side. If the router receives the SABME message, it must send back an Unnumbered Acknowledge frame (UAf).
https://www.cisco.com/c/en/us/support/docs/wan/t1-e1-t3-e3/8131-T1-pri.html

by Noah at Jul 12, 2026, 01:47 PM

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