Cisco 642-457 Online Practice Questions and Exam Preparation

Cisco 642-457 Online Questions & Answers

• Question 151:

  Which gateway does the Cisco Unified Communications Manager control all call activity?

  A. SIP
  B. MGCP
  C. H.323
  D. Media
  B. MGCP

• Question 152:

  When you configure regions in a Cisco Unified Communications Manager multisite cluster, which two are ways to prevent G.722 from being advertised in the cluster? (Choose two.)

  A. modify the service parameter
  B. modify the enterprise parameter
  C. modify the device pool
  D. modify the line settings
  A. modify the service parameter
  B. modify the enterprise parameter

• Question 153:

  Which action configures transcoding resources in Cisco Unified Communications Manager to function with branch office Cisco IP Phones?

  A. Configure the branch office IP phones with CSS and partitions.
  B. Configure the branch office IP phones with MRGs and MRGLs.
  C. Configure the branch office IP phones with regions.
  D. Configure the branch office IP phones with locations.
  B. Configure the branch office IP phones with MRGs and MRGLs.

• Question 154:

  Which action configures the registration of transcoder resources?

  A. Cisco IOS software registers transcoder resources with SIP.
  B. Cisco IOS software registers transcoder resources with SCCP.
  C. Cisco IOS software registers transcoder resources with H.323.
  D. Cisco IOS software does not register transcoder resources.
  B. Cisco IOS software registers transcoder resources with SCCP.

• Question 155:

  Assume that local route groups are configured. When an IP phone moves from one device mobility group to another, which two configuration components are not changed? (Choose two.)

  A. IP subnet
  B. user settings
  C. SRST reference
  D. region
  E. phone button settings
  B. user settings
  E. phone button settings

• Question 156:

  Which Cisco IOS command is used for internal SAF Clients to check SAF learned routes?

  A. show eigrp address-family ipv4 saf
  B. show voice saf routes
  C. show voice saf detail
  D. show eigrp service-family ipv4 saf
  E. show voice saf dndb all
  E. show voice saf dndb all

• Question 157:

  What impact do roaming-sensitive settings and Device Mobility settings have on call routing?

  A. Device Mobility settings have no impact on call routing, but roaming-sensitive settings modify the AAR group, AAR CSS, and device CSS.
  B. Device Mobility settings modify the device CSS and the roaming-sensitive settings modify the AAR group and AAR CSS.
  C. Device Mobility settings modify the AAR group and the AAR CSS, the roaming-sensitive settings modify the device CSS.
  D. Roaming-sensitive settings are settings that do not have an impact on call routing. Device Mobility settings, on the other hand, may have an impact on call routing because they modify the device CSS, AAR group, and AAR CSS.
  D. Roaming-sensitive settings are settings that do not have an impact on call routing. Device Mobility settings, on the other hand, may have an impact on call routing because they modify the device CSS, AAR group, and AAR CSS.

• Question 158:

  Which two options for a Device Mobility-enabled IP phone are true? (Choose two.)

  A. The phone configuration is not modified.
  B. The roaming-sensitive parameters of the current (that is, the roaming) device pool are applied.
  C. The user-specific settings determine which location-specific settings are downloaded from the Cisco Unified Communications Manager device pool.
  D. If the DMGs are the same, the Device Mobility-related settings are also applied.
  B. The roaming-sensitive parameters of the current (that is, the roaming) device pool are applied.
  D. If the DMGs are the same, the Device Mobility-related settings are also applied.

• Question 159:

  Which interface can you use to configure alarms and traces in Cisco Unified Communications Manager?

  A. Cisco Unified Reporting
  B. Cisco Unified Serviceability
  C. Cisco Unified Communications Manager Administration
  D. disaster recovery system
  E. Cisco Unified OS Administration
  F. real-time monitoring
  B. Cisco Unified Serviceability

• Question 160:

  Which two formats are supported by Cisco Unified Communications Manager to stream music on hold? (Choose two.)

  A. G.711
  B. G.729
  C. G.723
  D. G.722
  E. G.728
  F. Advanced Audio Codec
  A. G.711
  B. G.729