Pass4sure Cisco Certification

Troubleshooting Unified Communications

Exam Number: 642-426
Associated Certifications: CCVP
Duration: 90 minutes (54 questions)
Available Languages: English
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Exam Description Exam Topics Recommended Training Additional Resources
Exam Description
The 642-426 Troubleshooting Unified Communications (TUC) exam is the exam associated with the CCVP certification. Candidates can prepare for this exam by taking Troubleshooting Cisco Unified Communications (TUCv1.0) course. The exam will certify that the successful candidate has the knowledge and skills necessary to troubleshoot Enterprise CallManager, Unity, and IP network deployments. The exam addresses hands-on experience in configuring, deploying, and troubleshooting Unified Communications solutions. Topics covered include (see Claims and Components attached).

Exam Topics
The following topics are general guidelines for the content likely to be included on the Remote Access exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.

Apply the Cisco recommended methodology used to determine general Unified communications system problems and issues
Describe the steps that can be used to identify a problem with a given unified communication system
Identify tools that can be used to identify and isolate problems
Correlate events (using traces, logs, and monitoring tools to identify the problem)
Parse and interpret trace logs and system logs

Troubleshoot call setup issues
Troubleshoot PSTN call setup issues
Troubleshoot intersite call setup issues
Troubleshoot intrasite call setup issues

Troubleshoot registration issues
Troubleshoot issues with endpoint registration
Troubleshoot issues with gateway registration
Troubleshoot issues with gatekeeper registration

Troubleshoot database issues
Troubleshoot database replication issues in CallManager 4.x
Troubleshoot database replication issues in CallManager 5.x
Troubleshoot 3rd party LDAP synchronization issues

Troubleshoot application issues
Troubleshoot voicemail integration
Troubleshoot CTI integration issues
Troubleshoot IP phone XML services

Troubleshoot media resources
Troubleshoot music on hold
Troubleshoot conference bridges
Troubleshoot transcoders
Troubleshoot MTP

Troubleshoot voice quality issues
Troubleshoot echo
Troubleshoot dropped calls
Troubleshoot audio quality issues

Troubleshoot security issues
Troubleshoot authentication issues
Troubleshoot certificate issues

Question: 1
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.
Answer: B, C Question: 2
Refer to the exhibit.

You have received a trouble ticket stating that users cannot place calls to the PSTN. During testing you discover the gateway is not switching to the secondary call agent when the primary call agent is unreachable.
What needs to be done to allow the MGCP gateway to use a different call agent if the primary fails?

A – The ccm-manager fallback-mgcp command needs to be added to the gateway.
B – The ccm-manager redundant-host command needs to be added to the gateway.
C – A Cisco Unified CallManager group that includes the secondary call agent needs to be assigned to the gateway.
D – The gateway needs to be defined as a non-gatekeeper-controlled intercluster trunk with the secondary Cisco Unified CallManager defined.

Answer: B Question: 3

TK

Exam Name: Troubleshooting Unified Communications (TUC)
Exam Type: Cisco
Exam Code: 642-426 Total Questions: 55

You have received a trouble ticket stating that when callers dial the internal Help Desk queue at
extension 2300, they hear a message that their calls cannot be completed as dialed. Which two issues could cause this problem? (Choose two.)

A – There are no agents logged in to the Help Desk queue.
B – The script associated with the Help Desk queue is corrupt.
C – There is a connectivity issue between Cisco Unified CallManager and the Cisco Unified
Contact Center Express server.
D – The route point for 2300 has been modified or deleted in Cisco Unified CallManager, resulting
in a synchronization issue.
E – The CSS of the route point for 2300 is incorrect.
Answer: C, D Question: 4
Refer to the exhibit.

A gatekeeper has been configured on the 10.1.110.1 router to support three local zones, West, East and EMEA. When you do a show gatekeeper endpoints command the West zone device is missing. What needs to be done to the configuration in the CallManager for it to register with the gatekeeper in zone West?

A – Restart the CallManager so it can register with the gatekeeper
B – Change the Device Name to be the IP address of the gatekeeper in the CallManager Trunk
Configuration page
C – Set the Terminal Type to terminal in the Gatekeeper Information field of the Trunk
Configuration
D – Configure a zone name on the CallManager trunk
Answer: D Question: 5
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.

TK

Exam Name: Troubleshooting Unified Communications (TUC)
Exam Type: Cisco
Exam Code: 642-426 Total Questions: 55

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.
Answer: D Question: 6
Refer to the exhibit.

You have configured a gatekeeper with three local zones named East, West and EMEA. CallManager and the gateways in the East and EMEA zones are all registered in the West zone but they should each be registered in their own zone. What needs to be done to resolve this issue?

A – The gatekeeper needs to be stopped and restarted for the changes to take effect
B – The IP address in the gateway command h323-gateway voip ID needs to be changed to that
of the individual gateways in both gateways
C – The zone name in the gateway command h323-gateway voip ID needs to be changed to the correct zone in both gateways
D – The gatekeeper can only support one zone and all registering endpoints are being placed correctly in the first configured zone
Answer: C Question: 7
Which type of echo is found mostly on tail circuits and is due to reflection that causes the Tx
signal to appear on the Rx signal?

A – Hybrid echo
B – Talker echo
C – Listener echo
D – Tail-end echo

Answer: B Question: 8

TK

Exam Name: Troubleshooting Unified Communications (TUC)
Exam Type: Cisco
Exam Code: 642-426 Total Questions: 55

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.
Answer: B Question: 9
You have received a trouble ticket stating that an IP phone is not working. When asked, the user informs you the phone is displaying the message “Registration rejected.” Which two issues are
possible causes of this problem? (Choose two.)

A – The IP phone is not getting an IP address.
B – The IP phone’s primary Cisco Unified CallManager has a database replication issue.
C – The primary Cisco Unified CallManager is unavailable and the CallManager group assigned to the IP phone does not include a secondary CallManager.
D – The IP phone has not been defined in Cisco Unified CallManager.
E – The IP phone is not associated with a valid user profile.
Answer: B, D Question: 10
Refer to the exhibit.

A trunk has been configured between the Cisco Unified CallManager cluster at 10.1.5.10 and a
CME at 10.3.130.1. During testing you find that calls are completed when dialing from ext. 2020
to ext. 4001, but calls from ext. 4001 to ext. 2020 receive a fast busy. What is the issue that is preventing calls from ext. 4001 to ext. 2020 from being completed?

A – The h323-gateway voip bind srcaddr 10.3.130.1 command has been omitted from the BR2
configuration
B – A translation rule has been applied that is keeping the call from being completed
C – A CSS has been omitted from the trunk configured to BR2
D – An incorrect CSS has been applied to the gateway at HQ
E – The trunk IP address in the Cisco Unified CallManager Information is field is incorrect
Answer: C Question: 11
Refer to the exhibit.

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Recommended Training about 642-426 exam PDF
The following courses are the recommended training for 642-426 exam PDF.
642-426 Q & A with Explanations
642-426 Audio Exam
642-426 Study Guide
642-426 Preparation Lab

Exam Number/Code: 642-426
Exam Name: Troubleshooting Unified Communications (TUC)

“Troubleshooting Unified Communications (TUC)”, also known as 642-426 exam, is a Cisco certification.
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