Cisco 642-427 Online Practice Questions and Exam Preparation

Cisco 642-427 Online Questions & Answers

• Question 111:

  Which of these reasons can cause intrasite calls within a Cisco Unified Communications Manager cluster to fail?

  A. The route partition that is configured in the CCD requesting service is not listed in the calling phone CSS
  B. The trunk CSS does not include the partition for the called directory number.
  C. The MGCP gateway is not registered
  D. The calling phone does not have the correct CSS configured
  E. The calling phone does not have the correct partition configured.
  D. The calling phone does not have the correct CSS configured

• Question 112:

  As a network technician, you should be familiar with RTCP. Which of the following statements best describes a function of RTCP?

  A. RTCP provides encryption, message authentication and integrity, and anti-replay service for voice streams.
  B. RTCP provides out-of-band control information for an RTP flow
  C. RTCP caches an RTP packet-Layer 3 and Layer 4 headers in the routers at each end of a link, resulting in lower bandwidth demand for subsequent RTP packets.
  C. RTCP caches an RTP packet-Layer 3 and Layer 4 headers in the routers at each end of a link, resulting in lower bandwidth demand for subsequent RTP packets.

• Question 113:

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

• Question 114:

  Refer to the exhibit.

  

  Which course of action will resolve the Mobile Connect issues that are shown in the exhibit?

  A. Configure the Mobility softkey on the phone.
  B. Enable the user Cisco Mobile Connect
  C. Make the user an owner of the phone device in phone device configuration page.
  D. Enable the device mobility mode on the phone since it is disable.
  C. Make the user an owner of the phone device in phone device configuration page.

• Question 115:

  A second H.323 gateway has been added to headquarters with a Cisco Unified Communications Manager cluster. Outbound dialing for long-distance numbers works consistently through the first 323 gateway, but it is never routed through the

  second gateway. When the first gateway is shut down, no long-distance dialing works.

  Which change is needed to use both H.323 gateways for long-distance dialing?

  A. Add a second route pattern, the same as the first route pattern, to the second gateway.
  B. Remove the route list and route groups. Add both gateways to the existing route pattern for long- distance dialing.
  C. Configure the existing route pattern to a route list and a route group. Add both H.323 gateways to the route group.
  D. Remove the existing route pattern for long-distance dialing. Create a translation pattern for long- distance dialing and configure it to work with both H.323 gateways.
  C. Configure the existing route pattern to a route list and a route group. Add both H.323 gateways to the route group.

• Question 116:

  Which two methods can be used to correct database replication issues in a cluster running Cisco Unified CallManager 4.1? (Choose two.)

  A. Enter the utils dbreplication repair command at the command-line prompt.
  B. Execute the dblhelper utility on the publisher.
  C. Use the SQL Server Enterprise Manager application to recreate the database subscription.
  D. Run the Cisco Unified CallManager BARS utility to restore the database to the subscriber.
  E. Use the Informix database utility to recreate the database subscription.
  B. Execute the dblhelper utility on the publisher.
  C. Use the SQL Server Enterprise Manager application to recreate the database subscription.

• Question 117:

  Refer to the exhibit.

  

  The BR phones only support G.711 codec. When a call from HQ is placed to a BR phone, the call fails. The network administrator would like to use a hardware transcoder that is only reachable via the WAN from the HQ and BR sites. How should the transcoder region be configured?

  A. Configure G.711 codec from HQ to Xcode and G.711 from BR to Xcode
  B. Configure G.729 codec from HQ to Xcode and G.729 from BR to Xcode
  C. Configure G.711 codec from HQ to Xcode and G.729 from BR to Xcode
  D. Configure G.729 codec from HQ to Xcode and G.711 from BR to Xcode
  D. Configure G.729 codec from HQ to Xcode and G.711 from BR to Xcode

• Question 118:

  Which of the following best describe implementation challenges that are associated with variable- length numbering plans?

  A. the variable number of extensions that need to be implemented
  B. the number of trunks that need to be assigned
  C. the mapping between IP addresses and extension numbers
  D. the identification of the number of digits that need to be dialed before the call is routed
  E. the degree in which the dial plan varies.
  E. the degree in which the dial plan varies.

• Question 119:

  Some users report that they cannot dial out from headquarters on their Cisco IP Phones to PSTN users, but others can.

  Which troubleshooting approach is the most direct to isolate the source of the failure of the users that cannot dial out to the PSTN?

  A. Use DNA to analyze the dialing permissions of the Cisco IP Phones.
  B. Use DNA to generate actual calls to the PSTN.
  C. Use RTMT to analyze the dialing permissions of the Cisco IP Phones.
  D. Use RTMT to generate actual calls to the PSTN.
  A. Use DNA to analyze the dialing permissions of the Cisco IP Phones.

• Question 120:

  Refer to the exhibit.

  

  An intercluster call was placed from extension 2001 to 3001. The SDI trace from the calling cluster. Which RTP port was used by the calling phone?

  

  

  

  

  A. 4000
  B. 8000
  C. 18462
  D. 19470
  E. Not possible to tell because a second invite was sent because of call failure
  C. 18462