Cisco 642-427 Online Practice Questions and Exam Preparation

Cisco 642-427 Online Questions & Answers

• Question 141:

  Refer to the exhibit.

  

  When a Cisco IP Communicator phone roams from San Jose (SJ) to RTP, the Cisco IP Communicator physical location and the device mobility group change from SJ to RTP All route patterns are assigned a route list that points to the local route group All device pools are configured to use the local route group Which statement is true when the roaming phone places an AAR call?

  A. Since globalized call routing is not configured, then the SJ gateway will be used in this case
  B. The phone will use the AAR CSS that contains the SJ_PSTN partition. The call will egress at the SJ gateway
  C. The phone will use the AAR CSS that contains the RTP_PSTN partition. The call will egress at the SJ gateway
  D. The phone will use the AAR CSS that contains the SJ_PSTN partition. The call will egress at the RTP gateway.
  E. The phone will use the AAR CSS that contains the RTP_PSTN partition The call will egress at the RTP gateway.
  D. The phone will use the AAR CSS that contains the SJ_PSTN partition. The call will egress at the RTP gateway.

• Question 142:

  Refer to the exhibit.

  

  An IP phone that is connected through a Cisco Catalyst 3750 Series Switch is failing to register with Cisco Unified Communications Manager. When the user presses the settings button on the phone, the Operational VLAN ID shows a blank entry. What is the most likely cause for this issue?

  A. The switch may not be supplying inline power.
  B. The spanning tree portfast command needs to be removed.
  C. The trunk encapsulation is missing. The trunk must be configured for dot1.Q.
  D. Cisco Discovery Protocol is disabled on the switch
  E. The Operational VLAN ID of the phone always shows as blank. The Admin VLAN ID should be 110.
  D. Cisco Discovery Protocol is disabled on the switch

• Question 143:

  You have received a trouble ticket stating that users are no longer hearing a second dial tone after pressing 9 to initiate an external call. The trouble ticket states that the second dial tone is played only after several additional digits are dialed. What is the mostly likely cause of this problem?

  A. The Cisco Unified CallManager server is experiencing CPU spikes, causing a delay in playing the second dial tone.
  B. A route pattern beginning with the digit "9" has been added to the route plan without the Provide Outside Dial Tone check box selected.
  C. A route pattern beginning with the digit "9" has been added to the route plan with the Call Classification parameter set to OnNet.
  D. The first gateway in the route group is not available, causing a delay in playing the second dial tone while Cisco Unified CallManager queries the second gateway.
  B. A route pattern beginning with the digit "9" has been added to the route plan without the Provide Outside Dial Tone check box selected.

• Question 144:

  Refer to the exhibit.

  

  When a call is placed to extension 3001, the associated remote destination 907700990255 does not ring. Which CSS is responsible for extending the call to the remote destination?

  A. The Calling Search Space is responsible.
  B. The Rerouting Calling Search Space is responsible
  C. The Calling Party Transformation CSS is responsible
  D. The Calling Search Space and the Rerouting Calling Search Space are concatenated to determine where the call should be extended
  B. The Rerouting Calling Search Space is responsible

• Question 145:

  You have been employed as a network technician in a middle-sized company. Suppose that the default dial peer is matched. Please choose a capability that you must configure.

  A. disable DID
  B. invoke a Tcl application
  C. enable dtmf-relay
  D. disable VAD
  A. disable DID

• Question 146:

  How does the echo canceller interpret a signal when the ERL value is too low?

  A. The echo canceller treats the signal as echo and applies the configured values.
  B. The echo canceller considers the signal returning to the gateway as comfort noise generated during periods of silence and does not act on it.
  C. The echo canceller will apply the maximum echo-cancel coverage time to the signal to determine if this is echo or voice.
  D. The echo signal retuning to the gateway is too loud and the echo canceller interprets it as normal voice instead of echo.
  D. The echo signal retuning to the gateway is too loud and the echo canceller interprets it as normal voice instead of echo.

• Question 147:

  Look at the following exhibit carefully.

  You can click the Voice Gateway for the BR2 location to see the output from the debug voice ccapi inout command and click on 10.1.5.10 to view and search the trace file output. You can also enter a string in the Search box and click the Find

  button to search the output. X can be clicked to back to the item.

  As a network technician, you have recently configured a trunk between the Cisco Unified CallManager cluster at 10.1.5.10 and a CME at a 10.3.130.1. However, in the testing of this configuration, you discover that you cannot complete any call when dialing from ext. 2020 to ext.4001 or from ext.4001 to ext.2020. Please choose the most possible reason from the following statements.

  

  A. A transaction rule has been applied that is keeping the call from being completed.
  B. The CSS has been omitted from the trunk configured to BR2.
  C. An incorrect CSS has been applied to the gateway at HQ.
  D. The trunk IP address in the Cisco Unified CallManager information field is incorrect.
  D. The trunk IP address in the Cisco Unified CallManager information field is incorrect.

• Question 148:

  Which scenario causes a Cisco Unified Mobile Connect call to get routed to the dual-mode mobility identity number?

  A. The device is outside the enterprise.
  B. The device associates with the enterprise WLAN.
  C. The device registers with Cisco Unified Communications Manager.
  D. The device is not configured on Cisco Unified Communications Manager.
  A. The device is outside the enterprise.

• Question 149:

  Users report poor audio quality when they call across a WAN connection despite QoS being configured on the WAN links. Which command verifies if RTP packets are being dropped?

  A. show policy-map
  B. show class-map
  C. show policy-map interface serial 0/0/0
  D. show interface serial 0/0/0
  C. show policy-map interface serial 0/0/0

• Question 150:

  You just installed a second Cisco Unified Communications Manager cluster at a remote site that is accessible over your WAN link. Which two actions allow the route patterns in each cluster to route calls to the other cluster? (Choose two.)

  A. Create SIP trunks to a centrally located gatekeeper.
  B. Create SIP trunks from each cluster to the other cluster.
  C. A Cisco Unified Communications Manager route group and a route list are mandatory for inter- cluster dialing.
  D. Create ICTs from each cluster to the other cluster.
  B. Create SIP trunks from each cluster to the other cluster.
  D. Create ICTs from each cluster to the other cluster.