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Cisco 642-427 Exam Syllabus Topics:

Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:

Question 1

You are trying to access the GUI of Cisco Unified Communications Manager. However, it displays a "not accessible" error. In Cisco Unified Serviceability, which two services should you check for and ensure are running on the Control Center - Network Services page? (Choose two.)

A. Cisco Tomcat Stats Servlet
B. Cisco Trust Verification Service
C. Cisco Certificate Expiry Monitor
D. Cisco CallManager
E. Cisco Tomcat
F. System Application Agent

Question 2

Refer to the exhibit. You have received a trouble ticket stating that calls to international numbers are failing. To place an international call, users dial the access code "9," followed by "011," the country code, and the destination number. After entering the debug isdn q931 command on the MGCP gateway, you have the user attempt the call again.

Based on the debug output, what is the most likely cause of this problem?

A. The gateway dial peer needs to prefix "011" to the called number so the PSTN knows this is an international call.
B. The circuit is not configured correctly or has a physical layer issue.
C. The user's CSS does not permit international calls.
D. Cisco Unified CallManager is not stripping the access code before sending the call to the gateway.
E. The TON is incorrect.

Question 3

Three calls can successfully be made across a WAN link. When a fourth call is made, the quality of all four calls degrades. Which QoS mechanism can help avoid this problem?

A. FRF.12
B. priority queuing
C. LFI
D. LLQ
E. CAC

Question 4

Refer to the following exhibit.








An inter cluster call was placed from 2001 to 3001. The SDI trace was taken from the calling cluster. What codec was used for the connected call?

A. G.711U-law
B. G.711A-law
C. Unable to determine
D. G.729
E. G.722
F. G.723.1

Question 5

Which information can be used to troubleshoot dropped calls?

A. switch port configurations
B. Cisco Discovery Protocol neighbor output
C. system logs
D. Call Manager traces

Solutions: