Cisco 642-457 Online Practice Questions and Exam Preparation

Cisco 642-457 Online Questions & Answers

• Question 31:

  In a node-specific Service Advertisement Framework forwarder deployment model, what is the maximum number of Service Advertisement Framework forwarders that you can assign to a specific node?

  A. 1
  B. 2
  C. 3
  D. 4
  E. 5
  F. 6
  B. 2

• Question 32:

  When you configure TEHO for long-distance calls and use the local PSTN gateways as fallback, how many route patterns do you require for a cluster with five sites that are located in different area codes?

  A. 15 when not using a local route group
  B. 6 when using a local route group
  C. 5 when using a local route group
  D. 10 when not using a local route group
  B. 6 when using a local route group

• Question 33:

  Refer to the exhibit.

  

  

  The H.323 Gateway is showing status "unknown". Which statement is true?

  A. The gateway must be reset in Cisco Unified Communications Manager.
  B. The no gateway command followed by the gateway command must be issued in Cisco IOS.
  C. The mgcp commands must be removed.
  D. H.23 gateways do not register with Cisco Unified Communications Manager H.323 gateways always show status "Unknown".
  E. VUAN 1 20 may be down and so the H.323 gateway appears offline to the Cisco Unified Communications Manager
  D. H.23 gateways do not register with Cisco Unified Communications Manager H.323 gateways always show status "Unknown".

• Question 34:

  Which method can be used to address variable-length dial plans?

  A. Overlap sending and receiving.
  B. Add a prefix for all calls that are longer than 10-digits long
  C. Use nested translation patterns to eliminate inter-digit timeout
  D. Use the @macro on the route pattern
  E. Use MGCP gateways, which support variable-length dial plans
  A. Overlap sending and receiving.

• Question 35:

  Refer to the exhibit.

  

  How many calls are permitted by the RSVP configuration?

  A. one G.711 call
  B. two G.729 calls
  C. one G.729 call and one G.711 call
  D. eight G.729 calls
  E. four G.729 calls
  B. two G.729 calls

• Question 36:

  When an incoming PSTN call arrives at an MGCP gateway, how does the calling number get normalized to a global E.164 number with the + prefix in Cisco Unified Communications Manager?

  A. Normalization is done using translation patterns.
  B. Normalization is done using route patterns.
  C. Normalization is done using the gateway incoming called party prefixes based on number type.
  D. Normalization is done using the gateway incoming calling party prefixes based on number type.
  E. Normalization is achieved by local route group that is assigned to the MGCP gateway.
  D. Normalization is done using the gateway incoming calling party prefixes based on number type.

• Question 37:

  Refer to the exhibit.

  

  How many calls can be placed to Cluster B?

  A. three G.729 calls
  B. one G.711 call
  C. one G.711 and three G.729 calls
  D. There is no limit for incoming calls to Cluster B. Outgoing calls are limited to one G.711 and three
  E. 729 calls.
  A. three G.729 calls

• Question 38:

  Which sign is prefixed to the number in global call routing?

  B. +
  C. #
  D. @
  E. and
  F. *
  B. +

• Question 39:

  You are the Cisco Unified Communications Manager in Certpaper.com. After you add the Tcl paramspace command, the application can____.

  A. set aside memory for application variables
  B. access the data on an internal server
  C. access the data on an external server
  D. share parameters between different call applications
  D. share parameters between different call applications

• Question 40:

  For which VoIP protocol does a gatekeeper provide address translation and control access?

  A. H.323
  B. SIP
  C. Skinny
  D. H.248
  A. H.323