Cisco 642-437 Online Practice Questions and Exam Preparation

Cisco 642-437 Online Questions & Answers

• Question 11:

  When Cisco Unified Communications Manager Express is used, which type of files are used to enable phone displays and operations?

  A. phone GUI files
  B. phone firmware files
  C. Unified Communications Manager Express basic files
  D. Unified Communications Manager Express TSP archive files
  B. phone firmware files

• Question 12:

  Dial peers and gateways are important in the call routing process. The call routing process is done based on the inbound dial-peer and outbound dial-peer matching process. Which two statements are true? (Choose two.)

  A. Dial peer 0 for inbound POTS peers has a "no ivr application" configuration.
  B. When a Cisco router or gateway receives a call setup request, a digit-by-digit match is used to match against configured dial peers.
  C. Cisco platforms such as the Cisco AS53xx and AS5800 Series require that a configured inbound dial peer is matched for incoming POTS calls to be accepted as voice calls.
  D. In order to modify the default interdigit timeout set for 10 seconds, issue this command. interdigit timeouts # seconds voice-port.
  A. Dial peer 0 for inbound POTS peers has a "no ivr application" configuration.
  C. Cisco platforms such as the Cisco AS53xx and AS5800 Series require that a configured inbound dial peer is matched for incoming POTS calls to be accepted as voice calls.

• Question 13:

  If a packet is marked with an IP precedence value of 011, what is the corresponding binary DSCP class- selector value?

  A. 000011
  B. 011110
  C. 011000
  D. 011010
  E. 011100
  C. 011000

• Question 14:

  Which three methods are used by a Cisco Unified Border Element to provide network hiding? (Choose three.)

  A. Back-to-back user agent, replacing all SIP-embedded IP addressing
  B. IP network security boundary
  C. media flow-through
  D. RSVP
  E. IP network privacy
  F. Intelligent IP address translation for RTP flows
  B. IP network security boundary
  E. IP network privacy
  F. Intelligent IP address translation for RTP flows

• Question 15:

  Refer to the exhibit. Which three commands need to be entered so that IP phones on the Voice VLAN 120 will receive an IP address from the DHCP server that is located at 10.1.5.2? (Choose three.)

  

  A. interface vlan 120
  B. ip address 10.1.120.1 255.255.255.0
  C. interface voice vlan 120D. ip address 10.1.120.0/24
  D. ip helper-address 10.1.5.2
  A. interface vlan 120
  B. ip address 10.1.120.1 255.255.255.0

• Question 16:

  Which four commands are used to configure VoIP dial peers? (Choose four.)

  A. forward-digits
  B. destination-pattern
  C. description
  D. dial-peer voice
  E. codec
  F. port number
  G. prefix
  H. session target
  B. destination-pattern
  D. dial-peer voice
  E. codec
  H. session target

• Question 17:

  What is the difference between medium and high complexity codecs?

  A. The difference is the number of voice channels that can be supported by a single DSP.
  B. With higher codec complexity, more calls can be processed.
  C. The DSP processes codecs that only support high complexity transparently.
  D. Medium complexity codecs were used prior to Cisco 2800 and 3800 Series routers, whereas high complexity codecs are used in Cisco 2800 and 3800 Series and newer routers.
  A. The difference is the number of voice channels that can be supported by a single DSP.

• Question 18:

  Which two options are Cisco recommendations for enabling Cisco Unified Border Element to perform a CAC? (Choose two.)

  A. a voice service VoIP that is configured on the unique Cisco Unified Border Element to enable the CAC service
  B. two Cisco Unified Border Element gateways to enable RSVP-based CAC, with the media flow- through command configured
  C. Cisco Unified Border Element gateways activating RSVP-based CAC, using the media flow-around command
  D. two Cisco Unified Communications Manager clusters interconnected using a Cisco Unified Border Element
  E. an interconnection of a Cisco Unified Border Element and a Cisco Unified Communications Manager to support both voice and video calls
  B. two Cisco Unified Border Element gateways to enable RSVP-based CAC, with the media flow- through command configured
  D. two Cisco Unified Communications Manager clusters interconnected using a Cisco Unified Border Element

• Question 19:

  Which traditional telephony protocol was used as a basis for the H.323 suite of protocols?

  A. Q.921
  B. Q.931
  C. SS7
  D. SCCP
  B. Q.931

• Question 20:

  Which proprietary voice client-server protocol sends traffic back to Cisco Unified Communications Manager with every digit pressed on the endpoint?

  A. H.323 Protocol
  B. Media Gateway Control Protocol
  C. Session Initiation Protocol
  D. Skinny Client Control Protocol
  D. Skinny Client Control Protocol