NEW DUMPS– How to prepare the Cisco 642-426 exam and to 100 percent pass it without any problem?Cisco300-320 just published the newest Cisco 642-426 brain dumps with all the new updated exam questions and answers. You can get the free new version on Cisco300-320.com
Exam A
QUESTION 1
Explanation/Reference:
QUESTION 2
Which three capabilities cannot be configured if the default dial peer is matched? (Choose three.)
A. disable DID
B. invoke a Tcl application
C. enable dtmf-relay
D. disable VAD
E. set codec to G.711
F. set preference to 1
Correct Answer: BCD Section: (none) Explanation
Explanation/Reference:
QUESTION 3
Cisco CallManager 5.0 has just been deployed in two locations across a wide-area link. A distributed
model with an intercluster trunk has been used. When you call an IP phone at the remote site the phone
rings, but as soon as the other person picks up the phone, the call is dropped.
Where should you look to diagnose the problem?
A. locations
B. system parameters
C. media resource group
D. Cisco Unified CallManager group
E. Cisco Unified CallManager CTI traces
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 4
Your company has a centralized IP Telephony system and branch offices in eight major cities. The
manager of your company help desk recently published local access numbers for external customers to
reduce the costs associated with your company’s toll-free 800 service. However, when customers call the
new local numbers they hear a reorder tone instead of your centralized IVR.
What is the best solution to this issue?
A. Deploy transcoders at each remote location.
B. Deploy transcoders at the central location.
C. Deploy Cisco Unified IP IVRs at each remote location.
D. Increase the number of ports in the centralized IVR.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 5
You have received a trouble ticket stating that an executive with an account at a bank cannot retrieve account information by phone. When the executive calls the bank, the call is answered and the executive is prompted to enter the account code. However, the bank does not seem to recognize the DTMF tones and disconnects the call. What is a possible solution to this problem?
A. Configure the voice rtp send-recv command in the gateway.
B. Set the Cisco Unified CallManager service parameter ToSendH225UserInfoMsg to True.
C. Configure the progress_ind setup enable 3 command under the gateway VoIP dial peer.
D. Configure the progress_ind alert enable 8 command under the gateway POTS dial peer.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 6
Partition A contains four route patterns. The calling search space assigned to Device B contains only Partition A. When Device B dials 1136, which of the route patterns will be selected?
A. 1[14]XX
B. 11X!
C. 1[^2-8]XX
D. 1[1-4]XX
Correct Answer: B Section: (none) Explanation
Explanation/Reference: QUESTION 7
You have received a trouble ticket that says users are experiencing echo when their calls go out an
A. 323 gateway. You have tested the gateway and have modified the configuration so that the ERL level is now 6 dB. You also increased the echo-cancel coverage value to 64 ms. How will this impact voice quality after this change?
B. The increase in echo-cancel coverage will have no effect on voice quality.
C. The ends of sentences will be chopped by the echo canceller.
D. Consonants will be chopped by the echo canceller.
E. The echo canceller will take 2-3 seconds longer to converge at the beginning of the call.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 8
Your company has recently installed a Cisco Unified CallManager cluster and a Cisco Unity voice mail
platform. You have received complaints from users that the red MWI light never comes on, even when there
are new voice-mail messages in the voice mailboxes. Which two steps must be taken to resolve this issue?
(Choose two.)
A. Verify, using the Port Usage tool, that the ports dedicated to MWI on/off are not over-utilized. Add another dedicated port if the current port is over-utilized.
B. Verify that the MWI on/off numbers are unique within the Cisco Unified CallManager cluster dial plan. If they are not, change the MWI on/off numbers in the Cisco Unified CallManager cluster so they are unique and configure the Cisco Unity server so they match.
C. Ensure that the number of ports licensed for the Cisco Unity server is greater than or equal to the number of configured ports.
D. Verify that the calls are being sent to the correct ports on the Cisco Unity server. If they are being sent to the incorrect ones by the Cisco Unified CallManager cluster, correct the values in the cluster.
E. Verify that the same numbers are being used for MWI on/off in both the Cisco Unified CallManager cluster and Cisco Unity server. If they are different, change the Cisco Unity server to match the Cisco Unified CallManager cluster.
Correct Answer: BE Section: (none) Explanation
Explanation/Reference:
QUESTION 9
A company has migrated to a Cisco Unified CallManager IP Telephony system and is now replacing the
existing voice-mail system with a Cisco Unity voice-mail system. A small group of users has been
established to test the new voice mail system. The users were able to initialize their mailboxes and record
greetings; however, during testing the callers were sometimes unable to leave voice-mail messages for
Cisco Unity users.
Which two issues could cause this problem? (Choose two.)
A. There is a mismatch in the number of ports configured in Cisco Unified CallManager and Cisco Unity.
B. There is a mismatch in the MWI on/off numbers configured in Cisco Unified CallManager and Cisco Unity.
C. The call transfer call handlers are not configured correctly.
D. Cisco Unity is in a G.729 region and has not been configured to support G.729.
E. The hunt group is hunting to Cisco Unity ports that have been dedicated for message notification.
Correct Answer: AE Section: (none) Explanation
Explanation/Reference:
QUESTION 10
Which Cisco Unity troubleshooting tool would be used to diagnose problems with skinny and MWI messages?
A. Cisco Unity Performance Information and Diagnostics
B. Unity Diagnostic Tool
C. Integration Monitor
D. SysCheck
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 11
The following is a partial configuration of an access layer switch: mls qos map cos-dscp 0 8 12 16 28 32 40 48 mls qos ! Voice bearer traffic will be set to use which per-hop behavior?
A. EF
B. CS4
C. AF32
D. AF12
E. BE
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 12
The following is a partial configuration of an access layer switch: mls qos map cos-dscp 0 8 12 16 28 32 40 46 !
Voice bearer traffic will be set to which dscp value?
A. 46
B. 32
C. 28
D. 12
E. 0
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 13
Which log file contains call-processing information from services such as Cisco Unified CallManager
and Cisco Unified CallManager CTI Manager?
A. CTI trace
B. SDI trace
C. CDROnDemand
D. SDL trace
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 14
Which of these is a correct definition of “Alert”?
A. an event that provides the run-time status of a system, notifications when problems have occurred, and sometimes problem resolution
B. an event that can be configured to send information to multiple destinations, each of which has its own alert event level
C. an event, either a preconfigured or user-defined, that provides the current status and history of events in the Cisco Unified CallManager cluster
D. an event that provides the current view and history of SDI/SDL messages, information from which is stored by Cisco Unified CallManager in an SQL server database
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 15
When using trace output to troubleshoot a Cisco Unified CallManager 5.0 problem, how can you collect
and view the trace files?
A. Download the RTMT plug-in from the Cisco Unified CallManager Serviceability page to view the preconfigured trace files.
B. Configure the proper trace settings on the Cisco Unified CallManager Serviceability page and then use the embedded RTMT tool to view the trace files.
C. Configure the proper alarms and traces on the Cisco Unified CallManager Administration page and view the output with the RTMT plug-in.
D. Configure the proper trace settings on the Cisco Unified CallManager Serviceability page and download the RTMT plug-in from the CallManager Administration page to view the trace output.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 16
Refer to the exhibit. What is the TCP handle of this device?
A. SEP0002FD3BAB01
B. 1.100.7.173
C. 1,60,87
D. 10.1.120.149
E. 87
Correct Answer: E Section: (none) Explanation
Explanation/Reference:
QUESTION 17
Users are complaining that they hear echo when they place calls to the PSTN through the HQ_PSTN gateway. The voice port configuration for the gateway is as follows: voice-port 1/0:23 input gain -1 output attenuation 1 echo-cancel erl worst-case 3 Why are users hearing echo?
A. The echo canceller is functioning properly and some echo is to be expected on every call.
B. The actual ERL is 2dB; however, the echo canceller still does not acknowledge the input signal as echo because it is lower than the echo-cancel erl worst-case 3 command.
C. The echo canceller should be configured so that SIN and SOUT have a 2 dB difference in order to function properly.
D. InSignalLevel needs to be adjusted so that it is within the range from -20 dB to -25 dB
Correct Answer: B Section: (none)
Explanation Explanation/Reference:
QUESTION 18
Refer to the exhibit. A user at BR1 is on a call to the PSTN through the PRI interface on the local H.323 gateway. The IP WAN has just failed and the call has been dropped.
What is causing the call to be dropped?
A. The H.323 gateway has lost the D channel on the PRI.
B. SRST hasn’t been configured on the BR1 gateway.
C. The no h225 timeout keepalive command has not been configured on the gateway.
D. The IP phone hasn’t registered with SRST.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 19
Refer to the exhibit. A user is placing a call from BR1 to HQ across the IP WAN. As soon as the call
connects, it is dropped.
What is the cause of the problem?
A. MTP resources need to be configured on the BR1 gateway.
B. A codec mismatch has occurred and transcoders or additional transcoding resources need to be configured at HQ.
C. H.245 capabilities exchange has failed due to insufficient bandwidth.
D. Packet loss has kept H.225 setup messages from completing the call.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 20
In order for a third-party SIP phone to register with a Cisco Unified CallManager cluster, which three configuration parameters must match between the phone and the cluster? (Choose three.)
A. device pool
B. DN
C. username
D. password
E. MAC address
F. SIP profile
Correct Answer: BCE Section: (none) Explanation
Explanation/Reference:
QUESTION 21
You have two Cisco Unified CallManager clusters each using endpoint authentication. You have moved a small group of users from Cluster 1 to Cluster 2 and now their phones are failing to register with Cluster
2.
Each phone displays the error message “failure to authenticate on the CTL file”.
Which step should be taken to resolve this issue?
A. Restart the Cisco CTL Provider and the Cisco Certificate Authority Proxy Function.
B. Reset each IP phone so the correct CTL file can be downloaded.
C. Perform a factory reset on each IP phone so the correct CTL file can be downloaded.
D. Press the Settings button on each IP phone, select the Security Configuration menu, and reset the trust list.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 22
LSC validation is failing on a new SCCP IP phone you have just added to the Cisco Unified CallManager 5.0 cluster. No other IP phones are experiencing any problems with LSC validation. What can you do to help pinpoint the problem?
A. View the SDI trace output.
B. Check for security alarms.
C. Use the security configuration menu on the IP phone to verify that an LSC has been downloaded to the IP phone.
D. Verify that the authentication string is correct in the Cisco Unified CallManager device configuration screen.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 23
You have added a subscriber server to your Cisco Unified CallManager 5.0 cluster. The server is
functioning properly, but regular updates from the publisher are failing. All other publisher-subscriber
communications are working properly in the cluster.
What is the problem?
A. the service isn’t included in the current CTL client
B. the correct username and password are not being applied in the subscriber
C. the Cisco Unified CallManager Administrator username and password have been changed in the publisher
D. the CTL client wasn’t signed with the security token when the service was included in it
E. the MIC for the service needs to be included in the CTL client
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 24
You have received a trouble ticket stating that the MWI light is not coming on for a group of users.
Further investigation reveals that the affected users are connected to the same subscriber in the cluster.
Users that are connected to other subscribers in the same cluster are not experiencing this issue.
What is causing this problem?
A. The MWI numbers for this subscriber have been changed.
B. The Cisco Unity voice-mail services need to be restarted for the subscriber so all the users will receive proper MWI message indication.
C. Database replication has an error or has failed.
D. The voice-mail ports assigned to the subscriber are down.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 25
Your Cisco Unified CallManager 5.0 cluster is using your corporate Windows 2003 Active Directory for user information. Over the weekend you updated the Windows 2003 Active Directory Server and added a small group of new users. Cisco Unified CallManager is configured to synchronize with the Active Directory
server every 8 hours and it has been 32 hours since the last successful synchronization. The configuration
on Cisco Unified CallManager did not change during the Active Directory server upgrade and the
remainder of the Windows network is functioning properly.
What are two possible causes of this synchronization issue? (Choose two.)
A. The synchronization on the AD server was set to manual.
B. The domain controllers are down.
C. There is a username and or password mismatch between the Cisco Unified CallManager cluster and the Windows AD server.
D. Authorization has not been configured for a third party LDAP service.
E. The LMHOSTS file has been corrupted.
Correct Answer: BC Section: (none) Explanation
Explanation/Reference:
QUESTION 26
Your Cisco Unified CallManager 5.0 cluster has just started to use a third-party LDAP service. Users complain that they are unable to make changes to their passwords in their Cisco Unified CallManager user web pages. How should you resolve this problem?
A. Restart the phones that are having problems to reinitialize the LDAP database.
B. Have the users make changes to their passwords in the LDAP database.
C. Configure automatic synchronization of the LDAP database.
D. Change the passwords on the IP phone screen using the TUI.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 27
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.
Correct Answer: B Section: (none) Explanation Explanation/Reference:
QUESTION 28
Refer to the exhibit. You have received a trouble ticket stating that calls to local PSTN numbers are failing. To place a call, Cisco Unified CallManager users dial the access code “9,” followed by seven digits. After entering the debug voice dialpeer command on the H.323 gateway, you have the user attempt the
call
again.
Based on the debug output, what is the most likely cause of this problem?
A. The call is not matching an inbound dial peer resulting in a codec mismatch.
B. Cisco Unified CallManager is stripping the access code, resulting in only seven digits being sent to the gateway.
C. There is a physical layer issue with the circuit.
D. The gateway dial peer needs to prefix the access code to the called number.
Correct Answer: B Section: (none) Explanation
Explanation/Reference: QUESTION 29
Refer to the exhibit. You have received a trouble ticket stating that calls to international numbers are
failing. To place an international call, users dial the access code “9,” followed by “011,” the country code,
and the destination number. After entering the debug isdn q931 command on the MGCP gateway, you
have
the user attempt the call again.
Based on the debug output, what is the most likely cause of this problem?
A. Cisco Unified CallManager is not stripping the access code before sending the call to the gateway.
B. The gateway dial peer needs to prefix “011” to the called number so the PSTN knows this is an international call.
C. The user’s CSS does not permit international calls.
D. The TON is incorrect.
E. The circuit is not configured correctly or has a physical layer issue.
Correct Answer: D Section: (none) Explanation
Explanation/Reference: QUESTION 30
Refer to the exhibit. You have received a trouble ticket stating that calls to international numbers are
failing. To place an international call, users dial the access code “9,” followed by “011,” the country code,
and the destination number. After entering the debug isdn q931 command on the MGCP gateway, you
have the user attempt the call again.
Based on the debug output, what is the most likely cause of this problem?
A. Cisco Unified CallManager is not stripping the access code before sending the call to the gateway.
B. The gateway dial peer needs to prefix “011” to the called number so the PSTN knows this is an international call.
C. The user’s CSS does not permit international calls.
D. The TON is incorrect.
E. The circuit is not configured correctly or has a physical layer issue.
Correct Answer: E Section: (none) Explanation
Explanation/Reference:
We help you do exactly that with our high quality Cisco 642-426 Certification using the above training materials.Regardless of whichever computer you have, you just need to download one of the many Cisco 642-426 PDF readers that are available for free.