Cisco 642-457 Online Practice Questions and Exam Preparation

Cisco 642-457 Online Questions & Answers

• Question 71:

  With Cisco Extension Mobility, when a user logs in to a phone type which has no user device profile, what will happen to the phone?

  A. The phone takes on the default clusterwide device profile.
  B. The phone creates a new device profile automatically.
  C. The phone immediately logs the user off.
  D. The phone crashes and reboots.
  A. The phone takes on the default clusterwide device profile.

• Question 72:

  The relationship between a Region and a Location is that the Region codec parameter is combined with Location bandwidth when communicating with other Regions.

  A. FALSE
  B. TRUE
  A. FALSE

• Question 73:

  You need to verify if the Media Control Gateway Protocol gateway is enabled and active. Which command should you use for this purpose?

  A. show running-config
  B. show fallback-mgcp
  C. show gateway
  D. show ccm-manager fallback-mgcp
  E. show running-config gateway
  F. show fallback-mgcp ccm-manager
  D. show ccm-manager fallback-mgcp

• Question 74:

  What is the default value for the Drop Ad Hoc Conference service parameter? (Source:Preventing Toll Fraud)

  A. Never
  B. When No On-Net Parties Remain in the Conference
  C. When No Off-Net Parties Remain in the Conference
  D. Drop Ad Hoc Conference When Creator Leaves
  A. Never

• Question 75:

  How many hosted DN patterns per cluster does Cisco Unified Communications Manager allow you to configure?

  A. 500
  B. 1000
  C. 1500
  D. 2000
  E. 2500
  F. 5000
  D. 2000

• Question 76:

  Which bandwidth amounts are correct for configuring locations?

  A. 8 kb/s for G.729, 64 kb/s for G.711, and 64 kb/s for G.722
  B. 8 kb/s for G.729, 64 kb/s for G.711, and 16 kb/s for G.722
  C. 64 kb/s for G.729, 64 kb/s for G.711, and 64 kb/s for G.722
  D. 8 kb/s for G.729, 8 kb/s for G.711, and 8 kb/s for G.722
  A. 8 kb/s for G.729, 64 kb/s for G.711, and 64 kb/s for G.722

• Question 77:

  Refer to the exhibit.

  

  The HQ Cisco Unified Communications Manager has been configured for end-to-end RSVP. The BR Cisco Unified Communications Manager has been configured for local RSVP.

  RSVP between the locations assigned to the IP phones and SIP trunks at each site are configured with mandatory RSVP. When a call is placed from the IP phone at HQ to the BR phone at the BR site, which statement is true?

  A. The Cisco Unified Communications Manager at HQ will fall back to local RSVP and place the call. No RSVP end-to-end will occur.
  B. RSVP end-to-end will occur.
  C. The Cisco Unified Communications Manager at HQ will use end-to-end RSVP. The BR Cisco Unified Communications Manager will use local RSVP.
  D. The call will fail.
  E. The call will proceed as a normal call with no RSVP reservation.
  D. The call will fail.

• Question 78:

  Refer to the exhibit.

  

  How does the Cisco Unified Communications Manager advertise dn-block 2?

  A. 14087071222 with number type international
  B. +14087071222 with number type international
  C. +14087071222
  D. 14087071222
  C. +14087071222

• Question 79:

  Which Cisco IOS command is used to verify that a SAF Forwarder that is registered with Cisco Unified Communications Manager has established neighbor relations with an adjacent SAF Forwarder?

  A. show eigrp service-family ipv4 neighbors
  B. show eigrp address-family ipv4 neighbors
  C. show voice saf dndball
  D. show saf neighbors
  E. show ip saf neighbors
  A. show eigrp service-family ipv4 neighbors

• Question 80:

  Which statement is true regarding the configuration of SAF Forwarder?

  A. In a multisite dial plan, SAF Forwarders may exist in multiple autonomous systems.
  B. The client label that is configured in Cisco Unified Communications Manager must match the configuration on the SAF Forwarder router.
  C. There should not be multiple nodes of Cisco Unified Communications Manager clusters acting as SAF clients.
  D. The destination IP address must match the loopback address of the SAF router.
  A. In a multisite dial plan, SAF Forwarders may exist in multiple autonomous systems.