Cisco 642-457 Online Practice Questions and Exam Preparation

Cisco 642-457 Online Questions & Answers

• Question 161:

  When you configure Cisco Unified Communications Manager, you need to configure the router for Survivable Remote Site Telephony in case the Cisco Unified Communications Manger stops working. On which two factors would the number of IP phones and Directory Numbers that can register to the SRST router depend? (Choose two.)

  A. The protocol that is used in Cisco Unified Communications Manager
  B. Cisco Unified Communications Manager version
  C. Cisco IOS Software version
  D. WAN link bandwidth
  E. capacity of the Cisco Media Convergence Server
  F. router platform
  C. Cisco IOS Software version
  F. router platform

• Question 162:

  Refer to the exhibit.

  

  The HQ site uses area code 650. The BR1 site uses area code 408. The long distance national code for PSTN dialing is 1. To make a long distance national call, an HQ or BR1 user dials access code 9, followed by 1, and then the 10-digit

  number.

  Both sites use MGCP gateways. AAR must use globalized call routing using a single route pattern. Assume that all outgoing PSTN numbers are localized at the egress gateway as shown in the exhibit.

  How many route lists and route groups should be configured for AAR at a minimum?

  A. a single route list with a local route group for each site
  B. two route lists and two route groups for each site
  C. a single route list and four route groups for each sitea
  D. None. The AAR CSS can point directly to the route pattern.
  A. a single route list with a local route group for each site

• Question 163:

  Which ability does the Survivable Remote Site Telephony feature provide?

  A. a means to allow the local site to continue to send and receive calls in the event of a WAN failure
  B. a means to route calls on-net through other sites during high utilization periods
  C. a method that allows for backup calls in the event that your gateway fails
  D. the ability to force a call out of a certain trunk when the Cisco Unified Communications Manager is being upgraded
  A. a means to allow the local site to continue to send and receive calls in the event of a WAN failure

• Question 164:

  Refer to the exhibit.

  

  The remote site needs to run multicast MOH from flash. Which statement about the MOH server configuration in Cisco Unified Communications Manager is true?

  A. The MOH server must be enabled for G.729 in the Cisco IP Voice Media Streaming Application service parameters.
  B. Multicast MOH can use only G.711. So you must configure the command codec G711ulaw under the call-manager-fallback configuration at the remote site router.
  C. The MOH for the remote site is a standalone configuration. No extra configuration is required on the Cisco Unified Communications Manager MOH server.
  D. Configure a separate region for the MOH server. The codec between the MOH region and all other regions should be specified as G.711. Apply the MOH region through a device pool at the MOH server configuration page.
  E. Configure the location setting for the MOH server to 80 Kbps. This configuration forces the MOH server to use G.711 for the remote site.
  D. Configure a separate region for the MOH server. The codec between the MOH region and all other regions should be specified as G.711. Apply the MOH region through a device pool at the MOH server configuration page.

• Question 165:

  Refer to the exhibit.

  

  What media resource should be configured in Cisco Unified Communications Manager?

  A. Cisco Media Termination Point Hardware
  B. Cisco IOS Enhanced Media Termination Point Cisco
  C. Cisco IOS Media Termination Point
  D. Cisco Media Termination Point Hardware (WS-SVC-CMM)
  B. Cisco IOS Enhanced Media Termination Point Cisco

• Question 166:

  Refer to the exhibit.

  

  When a call between two HQ users is being conferenced with a remote user at BR, which configuration is needed?

  A. The BR_MRG must contain the transcoder device. The BR_MRGL must be assigned to the BR phones.
  B. The HQ_MRG must contain the transcoder device. The HQ_MRGL must be assigned to the HQ phones.
  C. A transcoder should be configured at the remote site and assigned to all remote phones through the BR_MRGL.
  D. The HQ_MRG must contain the transcoder device. The HQ_MRGL must be assigned to the software conference bridge.
  E. Enable the software conference bridge to support the 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 software conference bridge.

• Question 167:

  Refer to the exhibit. A user in RTP calls a phone in San Jose during congestion with Call Forward No Bandwidth (CFNB) configured to reach cell phone 4085550150. The user in RTP sees the message "Not Enough Bandwidth" on their phone and hears a fast busy tone. Which two conditions can correct this issue? (Choose two.)

  

  A. The calling phone (RTP) needs to have AAR Group value of AAR under the AAR Settings.
  B. The called phone (San Jose) needs to have AAR Group value of AAR under the AAR Settings.
  C. The calling phone (RTP) needs to have the AAR destination mask of 914085550150 configured under the AAR Settings.
  D. The calling phone (RTP) needs to have the AAR destination mask of 4085550150 configured under the AAR Settings.
  E. The called phone (San Jose) needs to have the AAR destination mask of 914085550150 configured under the AAR Settings.
  F. The called phone (San Jose) needs to have the AAR destination mask of 4085550150 configured under the AAR Settings.
  B. The called phone (San Jose) needs to have AAR Group value of AAR under the AAR Settings.
  F. The called phone (San Jose) needs to have the AAR destination mask of 4085550150 configured under the AAR Settings.

• Question 168:

  As a voice operations engineer, you need to standardize the firmware loads on a Cisco Unified Communications Manager cluster. You need to ensure that all the IP phones are loaded with device defaults load information. Which two locations can you verify to find the IP phones that have their firmware mismatched? (Choose two.)

  A. Cisco Unified OS Administration > Software Upgrades > TFTP File Management
  B. Cisco Unified CM Administration > Firmware Load Information
  C. Cisco Unified CM Administration > Device > Phone
  D. Cisco Unified OS Administration > Settings > Version
  E. Cisco Unified CM Administration > Device Defaults Configuration
  F. Cisco Unified Reporting > System Reports
  B. Cisco Unified CM Administration > Firmware Load Information
  F. Cisco Unified Reporting > System Reports

• Question 169:

  During device failover to the secondary Cisco Unified Communications Manager server, how does the phone recognize that the primary server is back?

  A. The secondary server keeps sending keepalive message to the primary server and when it succeeds, it unregisters the phones to force them to register to the primary.
  B. When the primary server goes online, it sends out an "ALIVE" message via broadcast so that the phones re-register.
  C. The phones never re-register with the primary server until the active (secondary) one goes down.
  D. The phone sends keepalive messages to the primary server frequently and when it succeeds, the phone re-registers with it.
  D. The phone sends keepalive messages to the primary server frequently and when it succeeds, the phone re-registers with it.

• Question 170:

  Which two actions are performed by the Call Control Discovery service after the local Cisco Unified Communications Manager loses its TCP connection with the primary and secondary Service Advertisement Framework? (Choose two.)

  A. Calls are routed to the PSTN gateway after the Call Control Discovery Learned Pattern IP Reachable Duration parameter expires.
  B. All learned patterns are purged from the local cache after the Call Control Discovery PSTN Failover Duration parameter expires.
  C. The Service Advertisement Framework forwarder contacts all the remaining Service Advertisement Framework forwarders in the cluster.
  D. All the remaining Service Advertisement Framework forwarders are notified for their learned patterns.
  E. The Cisco Unified Communications Manager establishes a connection with the primary and secondary Service Advertisement Framework after the Learned Pattern IP Reachable Duration parameter expires.
  F. Call Control Discovery immediately redirects all the calls to the PSTN gateway based on the learned patterns.
  A. Calls are routed to the PSTN gateway after the Call Control Discovery Learned Pattern IP Reachable Duration parameter expires.
  B. All learned patterns are purged from the local cache after the Call Control Discovery PSTN Failover Duration parameter expires.