Cisco 642-457 Online Practice Questions and Exam Preparation

Cisco 642-457 Online Questions & Answers

• Question 131:

  Refer to the exhibit.

  

  What must be configured on the HQ Cisco Unified Communications Manager to allow HQ users to dial the SAF learned directory number pattern 3XXX?

  A. Route pattern 3XXX should be configured and made available to HQ users through the phone CSS.
  B. Route pattern 3XXX should be configured and made available to HQ phone users through the phone AAR CSS.
  C. The SAF partition assigned to the SAF learned patterns must be available to the HQ phone users through the phone CSS.
  D. The SAF partition assigned to the SAF learned patterns must be available to the HQ phone users through the phone AAR CSS.
  E. The SAF directory number pattern 3XXX will be made available to all users automatically as soon as the SAF partition is selected.
  C. The SAF partition assigned to the SAF learned patterns must be available to the HQ phone users through the phone CSS.

• Question 132:

  What is a prerequisite of AAR deployment?

  A. You must have a single distributed call processing deployment.
  B. Calls must be manually rerouted through the PSTN or other networks when Cisco Unified Communications Manager blocks a call due to insufficient location bandwidth.
  C. Calls must be automatically rerouted through the PSTN or other networks when Cisco Unified Communications Manager blocks a call due to insufficient location bandwidth.
  D. Clustering must be implemented over the WAN.
  E. You must have a centralized call processing deployment.
  E. You must have a centralized call processing deployment.

• Question 133:

  Refer to the following exhibit.

  

  

  The MGCP gateway has the following configurations:

  called party transformation CSS HQ_cld_pty CSS (partition=HQ cld_pty.Pt) call.ng party transformation CSS HQ_clng_pty CSS (partition=HQ_clng_pty Pt)

  All translation patterns have the check box "Use Calling Party's External Phone Number Mask" enabled.

  When the IP phone at extension 3001 places a call to 9011 49403021 56001# what is the resulting called and calling number that is sent to the PSTN?

  A. The called number is 01 1 49403021 56001. The calling number will be 5553001 and number type set to subscriber.
  B. The called number is 011 49403021 56001. The calling number will be 5215553001 and number type set to national.
  C. The called number is 4940302156001 with number type set to international. The calling number will be 5215553001 and number type set to national.
  D. The called number is +49403021 56001 with number type set to international. The calling number will be 5215553001 and number type set to subscriber.
  A. The called number is 01 1 49403021 56001. The calling number will be 5553001 and number type set to subscriber.

• Question 134:

  Which two locations are the best locations that an end user can use to determine if an IP phone is working in SRST mode? (Choose two.)

  A. Cisco Unified Communications Manager Administration
  B. IP phone display
  C. Cisco Unified SRST Router
  D. Cisco Unified MGCP Fallback Router
  E. physical IP phone settings
  B. IP phone display
  E. physical IP phone settings

• Question 135:

  How many active gatekeepers can you can define in a local zone?

  A. 1
  B. 2
  C. 5
  D. 10
  E. 15
  F. unlimited
  A. 1

• Question 136:

  Which statement about the function of the "+" symbol in the E.164 format is true?

  A. The "+" symbol represents the international country code.
  B. The "+" symbol represents the international call prefix.
  C. The "+" symbol matches the preceding element one or more times.
  D. The "+" symbol matches the preceding element zero or one time.
  B. The "+" symbol represents the international call prefix.

• Question 137:

  Which system configuration is used to set audio codecs?

  A. region
  B. location
  C. physical location
  D. licensing
  A. region

• Question 138:

  If the device pool in the phone record does not match the device pools in the matching subnet, what will the system consider the phone to be?

  A. roaming
  B. unregistered
  C. unknown
  D. new device
  A. roaming

• Question 139:

  An update of the configuration using the Cisco CTL client not needed when _______.(SourcE. Configuring Cisco IP Telephony Authentication and Encryption)

  A. a Cisco Unified CallManager has been removed
  B. an LSC of the IP phone is upgraded
  C. a security token is added to the system
  D. an IP address of the Cisco TFTP server has been changed
  B. an LSC of the IP phone is upgraded

• Question 140:

  Which statement about technology implementation strategy is true?

  A. Cisco Unified Communications Manager Express can be configured to function with no Cisco Unified Communications Manager cluster in the enterprise.
  B. Cisco Unified Communications Manager Express in SRST mode can be configured to function with no Cisco Unified Communications Manager cluster in the enterprise.
  C. SRST can be configured to function with no Cisco Unified Communications Manager cluster in the enterprise.
  D. SRST and MGCP fallback can be configured to function with no Cisco Unified Communications Manager cluster in the enterprise.
  A. Cisco Unified Communications Manager Express can be configured to function with no Cisco Unified Communications Manager cluster in the enterprise.