Cisco 642-437 Online Practice Questions and Exam Preparation

Cisco 642-437 Online Questions & Answers

• Question 161:

  Which Cisco Unified Communications Manager component acts as a voice switch between multiple telephony circuits and can provide signaling and media conversion?

  A. gatekeeper
  B. gateway
  C. media exchanger
  D. PBX
  B. gateway

• Question 162:

  Which dial peer is matched when you call 2550?

  A. dial-peer voice 10 pots destination-pattern 2... forward-digits all port 1/1/1
  B. dial-peer voice 20 pots destination-pattern 2T forward-digits all port 1/1/4
  C. dial-peer voice 30 pots destination-pattern 255 forward-digits all port 1/1/2
  D. dial-peer voice 40 pots destination-pattern 255. forward-digits all port 1/1/3
  D. dial-peer voice 40 pots destination-pattern 255. forward-digits all port 1/1/3

• Question 163:

  The command address-hiding is entered to enable the SIP-to-SIP address hiding feature. In which configuration mode is this command entered?

  A. VoIP dial-peer configuration mode
  B. SIP configuration mode
  C. voice service VoIP configuration mode
  D. Cisco Unified Border Element configuration mode
  C. voice service VoIP configuration mode

• Question 164:

  What is the total number of differentiated services code point bits in the DiffServ field?

  A. 2
  B. 4
  C. 6
  D. 8
  C. 6

• Question 165:

  Refer to the exhibit. When an international call to 90114989531212001 is placed from extension 2001, which of the following statements is true?

  

  A. The call will fail because no incoming COR list is applied.
  B. The call will succeed because the incoming COR list is a superset of the outgoing COR list.
  C. The call will fail because the incoming COR list is not a superset of the outgoing COR list
  D. The call will succeed because the incoming COR list has the highest priority, by default, when no incoming COR list is applied.
  D. The call will succeed because the incoming COR list has the highest priority, by default, when no incoming COR list is applied.

  ---

  By default, an incoming call leg has the highest COR priority and the outgoing COR list has the lowest COR priority. This means that if there is no COR configuration for incoming calls on a dial-peer, then you can make a call from this dial-peer (a phone attached to this dial-peer) going out of any other dial- peer, irrespective of the COR configuration on that dial-peer. http://www.cisco.com/en/US/tech/tk652/tk90/technologies_configuration_example09186a00801 9d649.shtml

• Question 166:

  Which of these is "trusted" when the auto qos voip command is configured with the trust parameter on routers?

  A. source address
  B. MAC address of sender
  C. DSCP
  D. DES keyword
  C. DSCP

• Question 167:

  Which command can be used to display the outgoing dial peer that is reached when the telephone number 919195551234 is dialed?

  A. show dialplan 919195551234
  B. show number 919195551234
  C. show dial-peer number 919195551234
  D. show dialplan number 919195551234
  D. show dialplan number 919195551234

• Question 168:

  Which statement best describes dial peers in a voice gateway. (Choose two.)

  A. Dial peers are call legs that are used to identify call source and destination endpoints and to define the characteristics that are applied to each call leg in the call connection.
  B. Dial peers are configured with call legs that are essential to implementing dial plans and providing voice services over an IP packet network.
  C. A dial peer is a physical addressable endpoint in a voice gateway.
  D. Dial peers create physical connections called call legs to complete an end-to-end call.
  A. Dial peers are call legs that are used to identify call source and destination endpoints and to define the characteristics that are applied to each call leg in the call connection.
  C. A dial peer is a physical addressable endpoint in a voice gateway.

• Question 169:

  Which three commands should you use to configure DHCP information on Cisco Unified Communications Manager Express? (Choose three.)

  A. ip address
  B. ip dhcp pool
  C. dns server
  D. default gateway
  E. default-router
  F. subnet mask
  G. network
  B. ip dhcp pool
  E. default-router
  G. network

• Question 170:

  Which process does a voice gateway use to determine how to route an outbound call?

  A. The voice gateway uses the called number to match the destination pattern of outbound dial peers using the first-match rule.
  B. The voice gateway uses the calling number to match the destination pattern of the outbound dial peers using the longest-match rule.
  C. The voice gateway uses the first-match rule to match the calling number to the destination pattern of the outbound POTS and VoIP dial peers.
  D. The voice gateway uses the longest-match rule to match the called number to the destination pattern to the outbound POTS or VoIP dial peers.
  D. The voice gateway uses the longest-match rule to match the called number to the destination pattern to the outbound POTS or VoIP dial peers.