Cisco 642-427 : Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)

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Cisco 642-427 Exam Syllabus Topics:

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

1. Five users from a branch office and two users from headquarters frequently engage in conference calls with each other. Their clients call in from the PSTN. WAN bandwidth is very limited.
Which solution reduces the WAN utilization of the five users from a branch office and two users from headquarters in conference calls?

A) Utilize the hardware conference resources in headquarters. Configure all phones in the MRGL to the headquarters resources.
B) Configure the hardware DSP resources in the branch and headquarters ISR gateways to work together simultaneously in the same conference call.
C) Have the users from the branch office initiate the conference call. Configure the branch office phones in the MRGL to the branch office gateway resources.
D) Have the users from the branch office initiate the conference call. MRGL configurations are not required.

2. If after observing the results of your action plan, the problem still remains, at what point should you restart the troubleshooting process?

A) Consider the Possibilities
B) Implement Action Plan
C) Observe Results
D) Define the Problem
E) Problem Resolved
F) Document Facts
G) Create Action Plan
H) Gather Facts

3. How does LLQ ensure that voice traffic is always expedited?

A) LLQ uses CBWFQ to prioritize voice traffic and dequeue the voice packets so that they can be handled first.
B) LLQ adds a strict priority class to CBWQF. The class allows delay-sensitive data such as voice to be dequeued and sent first.
C) The strict priority queue has a higher weight than the queues in CBWFQ. This weight allows the delay sensitive data such as voice to be dequeued and sent first.
D) The LLQ strict priority queue allows delay-sensitive data such as voice to be dequeued and sent first (before packets in order queue are dequeued), giving delay sensitive data preferential treatment over other traffic.

4. In Cisco Unity Connection (CUC), you notice that the recordings do not have any sound. You need to correct this problem. What should you do?

A) Restart the transcoder.
B) Change the audio level for sniffer captures.
C) Change the port group settings.
D) Correct the advertised codec settings.
E) Restart the gateway.
F) Enable automatic gain control (AGC).

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

Solutions: