Pass4sure Cisco IP Communications Exam 642-425 v2.93

The Cisco IP Telephony Troubleshooting exam will certify that the successful candidate has important knowledge and skills necessary to troubleshoot Enterprise CallManager, Unity, and IP network deployments. The IP Telephony Troubleshooting exam is one of two exams in a curriculum that addresses both design/planning practices and hands-on experience in configuring, deploying, and troubleshooting AVVID solutions. IP Communications IP Telephony Troubleshooting : 642-425 Exam

Exam Number/Code: 642-425
Exam Name: IP Communications IP Telephony Troubleshooting
VUE Code: 642-425
Questions Type: Single choice, Multiple choice, Simulate,
Real Exam Question Numbers: 50-60 questions
Exam Language(s): English

“IP Communications IP Telephony Troubleshooting”, also known as 642-425 exam, is a Cisco certification.
Preparing for the 642-425 exam? Searching 642-425 Test Questions, 642-425 Practice Exam, 642-425 Dumps?

With the complete collection of questions and answers, Pass4sure has assembled to take you through 54 Q&As to your 642-425 Exam preparation. In the 642-425 exam resources, you will cover every field and category in IP Communications helping to ready you for your successful Cisco Certification.

Questions and Answers : 54 Q&As
Updated: 2008-2-9
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642-425 IPTT
IP Telephony Troubleshooting Exam

Last day to test 10/02/07
Exam Number: 642-425
Associated Certifications: CCVP, and IP Telephony Operations Specialist
Duration: 90 minutes (50-60 questions)
Available Languages: English
Click Here to Register: Pearson VUE
Exam Policies: Read current policies and requirements
Exam Tutorial: Review type of exam questions

Exam Description Exam Topics Recommended Training Additional Resources
Exam Description
The Cisco IP Telephony Troubleshooting exam will certify that the successful candidate has important knowledge and skills necessary to troubleshoot Enterprise CallManager, Unity, and IP network deployments. The IP Telephony Troubleshooting exam is one of two exams in a curriculum that addresses both design/planning practices and hands-on experience in configuring, deploying, and troubleshooting AVVID solutions.

Exam Topics
The following information provides general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam.

Describe effective troubleshooting methods to resolve issues in complex IP Telephony networks
Identify general converged network problems and issues
Perform a baseline analysis and document existing infrastructure using Cisco recommended methodologies
Create a troubleshooting strategy that follows Cisco recommended methodologies
Use Cisco TAC as a troubleshooting and escalation tool

Troubleshoot common CallManager configuration, integration and operations problems
Troubleshoot common call setup problems with both voice and video calls
Troubleshoot complex CallManager problems using system trace files
Troubleshoot and resolve Cisco CallManager dial-plan issues including CSS, Partitions, and translation patterns
Troubleshoot and resolve problems with media resources including MOH and conferencing
Identify CTI components and troubleshoot problems related to CTI

Troubleshoot Cisco AVVID and server components using the appropriate utilities and management tools
Demonstrate the use of the Cisco CallManager Serviceability tools to troubleshoot IPT problems

Troubleshoot common router, switch and gateway configuration, integration and operation issues and problems
Determine the effect of Layer 2 configuration errors on an IPT network operation
Determine the effect of Layer 3 configuration errors on an IPT network operation
Troubleshoot and resolve problems with Gateway operation

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Use appropriate troubleshooting methods to determine and solve QoS issues in complex IP Telephony networks
Determine the QoS policies in effect in an established network
Describe the various QoS methods available and their effect on network traffic flows
Identify common problems associated with voice echo

Troubleshoot common Unity configuration, integration and operation issues and problems
Troubleshoot and resolve message delivery problems
Describe disaster recovery tools
Troubleshoot and resolve MWI problems
Troubleshoot and resolve Voice Mail port problems

QUESTION 23:
The Event Viewer Application Log on the Cisco CallManager subscriber initially
showed device SEP000F223984410 unregistered with a Reason Code of 9. It is now
registered back to the Cisco CallManager subscriber.
What was the possible cause?
A. The IP Phone lost its keepalive after 90 seconds.
B. The Catalyst switch reset.
C. The device name was unknown.
D. The Cisco CallManager initiated a reset.
Answer: D
The following event logs relate specifically to Cisco CallManager.
* Error Message: %CCMCALLMANAGER-CALLMANAGER-3-CallManagerFailure:
Indicates some failure within the Cisco CallManager system.
Explanation – This alarm indicates that some failure occurred in the Cisco CallManager system. Look at the
Reason
Code of the error message for more information.
Recommended Action – Monitor for other alarms and restart the Cisco CallManager service, if necessary.
This table displays the Enum definitions and reason codes.

http://www.cisco.com/en/US/partner/products/sw/voicesw/ps556/products_tech_note09186a0080111ac2.shtml

QUESTION 24:
A Cisco CallManager installation is unable to connect to the PSTN. Calls cannot be
placed or received on the T1 circuit. You have verified that the Cisco CallManager
is correctly configured. Determine that root causes of the problem by using
appropriate debug and show commands.
Which of the following will correct the issue with outbound calls from IP Phone
4001 to 9195551234?
A. Change the destination-pattern for dial-peer 1 to 91[2-9]..[2-9]……
B. Add prefix 1 to dial-peer 1 configuration to send the expected digits o the PSTN.
C. Add the commands direct-inward-dial to dial-peer 1.
D. Configure clocking on controller T1 2/0 to connect physical layer issue.
E. Change the destination-pattern for dial-peer 5 to 14085554…
Answer: A
QUESTION 25:
A Cisco CallManager installation is unable to connect to the PSTN. Calls cannot be
placed or received on the T1 circuit. You have verified that the Cisco CallManager
is correctly configured. Determine that root causes of the problem by using
appropriate debug and show commands.
Calls from PSTN (9195551234) to IP Phone (14085554001) get dial-tone after
entering the digits instead of ringing phone 4001.
Which of the following will correct this issue?
A. Change the destination-pattern for dial-peer 5 to 14085554…
B. Add the command translate-outgoing called 1 under dial-peer 5.
C. Add the command direct-inward-dial to dial-peer 1.
D. Configure clocking on controller T1 2/0 to correct physical layer issue.
E. Change the destination-pattern for dial-peer 1 to 91[2-9]..[2-9]……
Answer: C

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