Exam 350-801 topic 1 question 439 discussion

Actual exam question from Cisco's 350-801

Question #: 439
Topic #: 1

An engineer is troubleshooting a Primary Rate Interface that fails to come up on a H.323 production voice gateway. Layer 1 and Layer 2 configurations were validated successfully. Which Cisco IOS command must be run to debug the issue with the least impact on network performance?

A. debug vtsp session
B. debug ccsip messages
C. debug all
D. debug isdn q931

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Suggested Answer: D 🗳️

by b3532e4 at Sept. 26, 2024, 2:28 p.m.

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TestingAAgain

3 months, 2 weeks ago

Selected Answer: D

Specifically says interface fails to come up. If layer 3 is down, there is no Q931 trace. That may be the answer, but this is a stupid question.

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b3532e4

7 months ago

The Cisco IOS command that must be run to debug the issue with the least impact on network performance is: D. debug isdn q931 This command is specifically useful for troubleshooting ISDN call setup issues by showing Layer 3 signaling messages (Q.931) on the D channel without overwhelming the system with unnecessary information. The content related to ISDN and Q.931 protocols was found in the document on Page 91, where Q.931 is mentioned as a mechanism for the initial handshake during call setup and channel teardown

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Exam 350-801 topic 1 question 439 discussion

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TestingAAgain

b3532e4

SY0-701