Cisco 642-427 Online Practice Questions and Exam Preparation

Cisco 642-427 Online Questions & Answers

• Question 231:

  The CLI utils dbreplication reset all was run on a Cisco Unified Communications Manager. However, replication failed to restart. Which course of action should be taken to resolve this issue?

  A. Restart the replication from the Cisco Unified Communications Manager RTMT tool.
  B. Issue the CLI command utils dbreplication runtimestate
  C. Issue the CLI command utils dbreplication reset
  D. Issue the CLI command utils dbreplication clusterreset
  E. Issue the CLI command utils dbreplication clusterreset all
  D. Issue the CLI command utils dbreplication clusterreset

• Question 232:

  Refer to the exhibit. Voice bearer traffic is mapped to which queue in FastEthernet0/2?

  

  A. Queue 1
  B. Queue 2
  C. Queue 3
  D. Queue 4
  B. Queue 2

• Question 233:

  At what step do you restart the troubleshooting process if after observing the result of your troubleshooting, the problem still exists?

  A. Implement Acton Plan
  B. Define the Problem
  C. Consider the Possibilities
  D. Create Action Plan
  E. Gather Facts
  F. Observe Results
  G. Restart Problem-Solving
  H. Process Problem Resolved
  A. Implement Acton Plan

• Question 234:

  You are a voice technician. If you are required to solve latency issues in a VoIP network, which measures will you take? (Select three.)

  A. Use dejitter buffers
  B. Increase bandwidth
  C. Prioritize voice packets
  D. Fragment data packets
  B. Increase bandwidth
  C. Prioritize voice packets
  D. Fragment data packets

• Question 235:

  You want to reduce WAN bandwidth for audio calls from the branch office to the headquarters over the WAN link. Which two solutions reduce WAN bandwidth for audio calls? (Choose two.)

  A. Configure the Cisco Unified Communications Manager region to use G.729 instead of G.711.
  B. Configure the Cisco Unified Communications Manager region to use G.711 instead of G.729.
  C. Configure transcoding on the branch gateway.
  D. Configure transcoding on the headquarters gateway.
  A. Configure the Cisco Unified Communications Manager region to use G.729 instead of G.711.
  C. Configure transcoding on the branch gateway.

• Question 236:

  Remote branch offices with Cisco IP Phones have just been implemented across a 2 Mb/s WAN link from your existing Cisco Unified Communications Manager cluster in headquarters. The WAN links are heavily utilized for data traffic. Users from the branch office report poor audio quality when they call the headquarters.

  Which approach can you implement to directly improve audio quality in this scenario?

  A. Implement LLQ.
  B. Implement CBWFQ.
  C. Implement weighted random early detection.
  D. Implement TCP header compression.
  A. Implement LLQ.

• Question 237:

  Users in a branch office cannot hear MOH when they are on hold. However, users in the headquarters office where Cisco Unified Communications server is installed have MOH enabled and can hear MOH when on hold. Which action solves this problem?

  A. Enable the MOH file in the headquarters router flash.
  B. Enable the MOH file in the branch router flash.
  C. Remove multicast routing in the headquarters router.
  D. Remove multicast routing in the branch router.
  B. Enable the MOH file in the branch router flash.

• Question 238:

  LSC validation is failing on a new SCCP IP phone you have just added to the Cisco Unified CallManager 5.0 cluster. No other IP phones are experiencing any problems with LSC validation. What can you do to help pinpoint the problem?

  A. View the SDI trace output.
  B. Check for security alarms.
  C. Use the security configuration menu on the IP phone to verify that an LSC has been downloaded to the IP phone.
  D. Verify that the authentication string is correct in the Cisco Unified CallManager device configuration screen.
  C. Use the security configuration menu on the IP phone to verify that an LSC has been downloaded to the IP phone.

• Question 239:

  Refer to the exhibits.

  

  MOH has been configured to run from flash at the BR1 site. The HQ phones and MOH server are placed in the Default region through the Default device pool. The BR1 phones are placed in the BR1 region through the BR1

  device pool. The region configuration between Default and BR1 only permits 729 codec. When an IP phone user at the HQ site places a BR1 caller on hold, the BR1 caller hears tone on hold.

  Which of the following can cause this issue?

  

  

  

  

  A. Multicast routing is not enabled on the BR1 router.
  B. The command ip pim separate-dense-mode is missing from interface VLAN 120 at the SRST router in BR1.
  C. The MOH server is unable to stream MOH using G.711 codec because of the regions configuration.
  D. The command route 10.1.120.1 must be added to the multicast moh 239.1.1.1 port 16384 command at the SRST router in BR1.
  E. The Max Hops is too small in the MOH configuration
  B. The command ip pim separate-dense-mode is missing from interface VLAN 120 at the SRST router in BR1.

• Question 240:

  Refer to the exhibit.

  

  When the WAN link to headquarters fails, phones of the branch users are registered to the SRST gateway but cannot successfully dial 911 to the local Public Safety Answering Point. Which action enables 911 dialing to the PSAP when the WAN link is down?

  A. Add the command MGCP.
  B. Add the command prefix 911 to dial peer 911.
  C. Add the command ccm-manager redundant host 10.10.10.101.
  D. Add the command telephony-service and configure Cisco Unified Communications Manager Express to the existing configuration.
  E. Dialing to the PSAP is not possible when the WAN link is down.
  B. Add the command prefix 911 to dial peer 911.