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

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

1. Refer to the exhibit. A user is on a call to the PSTN through the MGCP gateway at BR1. The gateway and the IP phone lose the connection to the Cisco Unified CallManager cluster at HQ and the call is dropped. What is causing the call to be dropped?

A) The CallManager cluster has lost control of the D channel on the PRI gateway at BR1.
B) SRST has not been configured on the BR1 gateway.
C) The no h225 timeout keepalive command has not been configured on the gateway.
D) The IP phone has not registered with SRST.

2. For settings that are related to Cisco Unified Communications Manager Device Mobility, which option shows the correct order of priority for overlapping parameters, from highest to lowest?

A) home device pool settings, phone settings, roaming device pool settings
B) home device pool settings, roaming device pool settings, phone settings
C) roaming device pool settings, phone settings, home device pool settings
D) phone settings, home device pool settings, roaming device pool settings

3. What are three requirements for Quality of Service for voice calls? (Choose three.)

A) jitter less than or equal to 45 ms
B) one-way latency less than or equal to 150 ms
C) loss less than or equal to 1 percent
D) PoE-supported Layer 2 switches used to connect IP Phones
E) jitter less than or equal to 30 ms
F) guaranteed bandwidth of 384 kbps for a voice call

4. You are a network technician working in the Network Company. Recently, users complain that they cannot call the PSTN. With the help of testing, you find that the gateway is not switching to the secondary call agent when the primary call agent is unreachable. In order to permit the MGCP gateway to take use of a different call agent once the primary fails, which configuration should you make?

A) Define gateway as a non-gatekeeper-controlled intercluster trunk with the secondary Cisco Unified CallManager defined.
B) Add ccm-manager fallback-mgcp command to the gateway.
C) Assign a Cisco Unified CallManager group including the secondary call agent to the gateway
D) Add ccm-manager redundant-host command to the gateway

5. Refer to the exhibit.

Refer to the exhibit. When a call between two HQ users was being conferenced with a remote user at the BR site, the conference failed.
Which configuration would be needed to solve the problem?

A) A transcoder should be configured at the remote site and assigned to all remote phones through the BR_MRGL.
B) The BR_MRG must contain the transcoder device. The BR_MRGL must be assigned to the BR phones.
C) Enable the software conference bridge to support G.711 and G.729 codecs in Cisco Unified Communications Manager service parameters.
D) The HQ_MRG must contain the transcoder device. The HQ_MRGL must be assigned to the HQ phones.
E) The HQ_MRG must contain the transcoder device. The HQ_MRGL must be assigned to the software conference bridge.

Solutions: