Pass4sure Cisco Certification

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

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 1:

AN outsourcing IT firm has come in to review operations for all SQL server
machines in an organization. They request, and are allowed to change all usernames and passwords for security purposes. After they leave, replication fails.
What is the most likely problem?

A. CCMAcct username mismatch B. CCMSvc password mismatch C. SQLSvc password mismatch
D. SQLRpl username mismatch

Answer: C

Explanation: The SQLSvc account is the core account used for server-to-server
interaction within a Cisco CallManager system. This account must be the same on every machine in the cluster for database replication to work properly. If the SQLsvc password has been changed on the publisher from the installed default, replication of the publisher database will fail when a new subscriber is added.If replication has failed, change the
new subscriber’s SQLsvc service password to match the SQLsvc password on the publisher, and replication should succeed.

QUESTION 2:
Which CTI device allows queuing of calls to an unlimited depth? A. hunt group
B. route point
C. peer
D. port

Answer: B

QUESTION 3:

You have recently installed a new Catalyst 3524-PWR switch in an IDF to increase the number of IP phones for a department. The IP phone for an office receives
power but cannot communicate with the CallManager. The department uses VLAN
16 for data and VLAN 160 for voice. From the given show running-configuration command there are multiple problems. How can the communication problem with the CallManager be resolved?
Dept16SW2#show running.-configuration
!
!
output omitted

TK

!
interface FastEthernet 0/6
switchport trunk encapsulation dot1q switchport trunk native vlan 16 switchport mode trunk
switchport voice vlan 169 spanning-tree uplinkfast switchport priority extend none
!
end

A. Change the voice VLAN to 160.
B. Change the switchport trunk encapsulation type to ISL.
C. Configure the port as an uplink to another switch configured for uplinkfast.
D. Change the incorrect switchport priority extend none command to switchport priority extend trust to extend the trust boundary to the IP phone.

Answer: A

QUESTION 4:

You have a centralized IP Telephony system with branch offices in eight major cities. The manager of your company help desk recently published local access numbers for external customers to reduce the cost associated with your company’s toll-free 800 service. When customers call the new local numbers they hear a
reorder tone instead of your centralized IP-IVR. What is the best solution to this issue?

A. Deploy transcoders at the central location.
B. Deploy transcoders at each remote location.
C. Modify Region configuration to allow G.711 across the WAN. D. Deploy IP-IVRs to each remote location.

Answer: A

QUESTION 5:

The operation of an existing network is severely degraded,
Assign the appropriate severity level as defined by the TAC Case Severity
Definition.

A. S2 upgraded to S1
B. S4 upgraded to S1
C. S1 downgraded to S2
D. S3 downgraded to S4
E. S3 upgraded to S2

TK

Answer: E
Cisco IP Solution Center Documentation Guide, 3.2
TAC Case Priority Definitions
To ensure that all cases are reported in a standard format, Cisco has established case priority definitions.
Priority 1 (P1)-Your network is “down” or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.
Priority 2 (P2)-Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.
Priority 3 (P3)-Operational performance of your network is impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.
Priority 4 (P4)-You require information or assistance http://www.cisco.com/en/US/partner/products/sw/netmgtsw/ps4748/products_documentation_roadmap09186a0
0

QUESTION 6:

DRAG DROP
Drag the Cisco recommended troubleshooting model step to its appropriate location.

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Recommended Training about 642-425 exam PDF
The following courses are the recommended training for 642-425 exam PDF.
642-425 Q & A with Explanations
642-425 Audio Exam
642-425 Study Guide
642-425 Preparation Lab

Exam Number/Code: 642-425
Exam Name: IP Communications IP Telephony Troubleshooting
VUE Code: 642-425
Questions Type: Single choice, Multiple choice, Simulate,
Question Numbers of Real-exam: 50-60 questions

“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: March 31st , 2008
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