Pass4sure 642-452 GWGK
Filed Under (Cisco) by Best PassGuide Certification PDF Dumps on 26-09-2008
Tagged Under : ccvp
Gateway Gatekeeper Exam
Retired 4/26/07
Exam Number: 642-452
Associated Certifications: CCVP
Duration: 90 minutes (55-65 questions)
Available Languages: English
Click Here to Register: Pearson VUE or Prometric
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 Gateway Gatekeeper exam assesses the knowledge of the Systems Engineer on the implementation of Cisco gateways and gatekeepers to integrate a VoIP network to both PSTN and TDM equipment. This includes implementing dial plans and advanced gateway features such as SRST and DSP resources. The exam also covers implementing gatekeepers and directory gatekeepers to provide hierarchical dial plan resolution and call admission control.
Exam Topics
Explain the function and interoperation of Gateways within a converged network
Compare and contrast the different protocols used on the Gateways, and the appropriate application of each protocol
Explain the differences between the various Digital and Analog line protocols
Describe and explain QSIG and its implementation
Describe and explain drop and insert multiplexing features
Configure and implement DSP resources to support specified requirements
Explain the capabilities and functions of a DSP resources
Configure a DSP resources to support transcoding
Configure a DSP resources to support conferencing
Explain the function and interoperation of Gatekeepers within a converged network
Explain the function of Gatekeepers
Explain the interoperation of a Gatekeeper and the call agent
Describe and explain the Gatekeeper transaction message protocol and it’s usages
Determine the relevant technical and business needs that effect the choice of Gateway features, protocols and placement
Select the correct placement of the Gateway within a given network topology to meet stated requirements
Given different Telco and PBX system offerings, determine which Gateway services can be supported
Select the correct protocol to support the required features (Fax relay, modem relay, pass-though, survivability, caller-ID, caller name display)
Determine the relevant technical and business needs that effect the choice of Gatekeeper features and placement
Select the correct placement of the Gatekeeper within a given network topology to meet stated requirements
Select the appropriate Gatekeeper functionality given stated business and technical requirements. (call admission control, dial-plan resolution)
Configure and implement a Gateway to interface with the PSTN
Configure PRI connectivity (switch type, signaling)
Configure BRI connectivity (switch type, signaling)
Configure CAS connectivity ( feature group B and D, E1 R2)
Configure Analog connectivity (loop and ground start, FXO, DID, FXS)
Configure drop-and-insert feature
Verify and troubleshoot configurations
Configure and implement a Gateway to interface with a PBX and voice mail system
Configure analog connectivity (FXO, FXS, E&M types 1-4)
Configure PRI connectivity (switch type, Qsig, signaling)
Configure BRI connectivity (switch type, signaling)
Configure CAS connectivity ( feature group B and D, E1 R2)
Configure additional voicemail connectivity features (DTMF 4th column, etc)
Configure IP circuit emulation feature
Verify and troubleshoot configurations
Design and deploy a dial-plan to meet specific requirements
Configure digit manipulation. (translation rules, number expansion)
Design call routing scheme to meet technical and business requirements
Configure alternate call routing. Based on resource availability or cost
Implement and configure COR to meet business requirements
Configure Gateway to use Gatekeeper for call resolution
Configure call agent to use Gatekeeper for call resolution
Verify and troubleshoot configurations
Implement extended services on the Gateway including Auto Attendant and Accounting/Billing
Download TCL scripts
Configure Auto Attendant using TCL scripts
Describe TCL usages (Billing, Radius, AAA)
Design and deploy redundant Gateway configurations to provide high availability
Implement SRST on the Gateway
Describe necessary physical connectivity requirements to support redundant gateways
Design and deploy redundant Gatekeeper configurations to provide high availability
Configure HSRP between Gatekeeper devices
Configure Gatekeeper clustering
Configure and implement Gateways and Gatekeepers within a managed services or service provider environment
Determine when an IP-IP Gateway is necessary to meet technical and business requirements
Configure IP-IP Gateways
Describe and explain when the OSP protocol is necessary to meet technical requirements
Contrast the Enterprise and Service Provider environments
QUESTION 1:
Which two functions are provided by a DSP farm? Select two. A. called ID
B. transcoding
C. E911
D. directory lookup
E. conference bridging
F. music on hold
Answer: B, E Explanation:
The DSP farm uses the DSP resources in network modules on Cisco
routers to provide voice-conferencing, transcoding, and hardware MTP services. Implementing Cisco Voice Gateways and Gatekeepers (GWGK) v1.0
pg 4-56 Implementing Advanced Gateway Features
QUESTION 2:
DRAG DROP
Answer:
TK
Explanation:
Why Choose H.323
* Integrated access
* Caller ID support on analog FXO
* Many more TDM interface types and signaling
* Dropping DSPs on hairpinned calls
* Gateway-resident applications like TCL and VXML
* CAC network design with H.323 gatekeepers
* No release dependencies between gateways and Cisco CallManager
* Much easier migration architecture to SIP
* Call preservation for Cisco SRST
* NFAS support
Implementing Cisco Voice Gateways and Gatekeepers (GWGK) v1.0
pg 1-66 Function of Gateways and Gatekeepers
Using MGCP as the call control protocol to a gateway has the following advantages:
* Centralized configuration, control and download from Cisco CallManager
* Better feature interaction with capabilities like caller ID and name display
* Easy, centralized dial-plan management
* Gateway voice security features (voice encryption) as of Cisco IOS Software Release
12.3.(5th)T
* Q Signaling (QSIG) supplementary services as supported by Cisco CallManager:
- Cisco CallManager interconnects to a QSIG network using an MGCP gateway and T1
or E1 PRI connections to a private integrated services network (PISN). The MGCP gateway establishes the call connections. Using the PRI backhaul mechanism, the gateway passes the QSIG messages to the Cisco CallManager to set up QSIG calls and send QSIG messages to control features.
- When a PBX is connected to a gateway that is using QSIG via H.323, calls that are
made between phones on the PBX and IP phones attached to the Cisco CallManager can have only basic PRI functionality. The gateway that terminates the QSIG protocol
provides only the calling line ID (CLID) and DID number, instead of Cisco CallManager providing that information.
* Enhanced call survivability:
- Calls from IP phones through an MGCP gateway are preserved on a CallManager
TK
failover. This feature avoids dropped calls when applying the monthly operation system
service release on the Cisco CallManagers
- In SRST mode, calls from IP phones through an MGCP gateway are preserved on
MGCP fallback for calls on analog or CAS circuits. Calls on ISDN circuits are dropped on fallback.
Implementing Cisco Voice Gateways and Gatekeepers (GWGK) v1.0
pg 1-67 Function of Gateways and Gatekeepers
QUESTION 3:
DRAG DROP
As an instructor at Certkiller .com you are required to click and drag the recommended redundancy method to each layer of the gatekeeper hierarchy. An item may be used more than once.
Answer:
Explanation: Cisco recommends that you use gatekeeper clustering(that is Alternate Gatekeeper) to provide gatekeeper redundancy whenever possible. Use HSRP for redundancy only if gatekeeper clustering is not available in your software feature set.
In any layer of gatekeeper hierarchy, Alternate Gatekeeper method are recommended..
QUESTION 4:
Free 642-452 Exams’s PDF Download
Free Testking offers free demo for 642-452 PDF(CCVP Gateway Gatekeeper Exam (GWGK)). You can check out the interface, question quality and usability of our practice exams . We are the only one site can offer demo for almost all CCVP Gateway Gatekeeper Exam (GWGK).
Recommended Training about 642-452 exam PDF
The following courses are the recommended training for 642-452 exam PDF.
642-452 Q & A with Explanations
642-452 Audio Exam
642-452 Study Guide
642-452 Preparation Lab
Exam Number/Code: 642-452
Exam Name: CCVP Gateway Gatekeeper Exam (GWGK)
VUE Code: 642-452
Questions Type: Single choice, Multiple choice, Simulate,
Question Numbers of Real-exam: 55-65 questions
“CCVP Gateway Gatekeeper Exam (GWGK)”, also known as 642-452 exam, is a Cisco certification.
Preparing for the 642-452 exam? Searching 642-452 Test Questions, 642-452 Practice Exam, 642-452 Dumps?
With the complete collection of questions and answers, Pass4sure has assembled to take you through 156 Q&As to your 642-452 Exam preparation. In the 642-452 exam resources, you will cover every field and category in CCVP helping to ready you for your successful Cisco Certification.
Questions and Answers : 156 Q&As
Updated: May 2nd , 2008
Market Price: $125.99
Member Price: $89.99
Pass4sure 642-452 GWGK
Interactive Testing Engine Included!
54 Questions
Updated : 09/18/2008
Price : $87.99 $79.99
Free download：pass4sure 642-452 GWGK
Free download：testking 642-452 GWGK
Download Free Latest PassGuide Microsoft braindumps
- Free testking 642-452 GWGK Dumps
- Free testking GWGK 642-453 Dumps
- Free Pass4sure 642-453 Gateway Gatekeeper Dumps
- Free 642-436 CVOICE Dumps
- Free Testinside cisco CCVP 642-453 Dumps
- Free testking 642-436 CVOICE 6.0 Dumps
- Free Pass4sure cisco ccvp exams dumps Dumps
- Free Testinside cisco CCVP 642-436 Dumps
- Free Download New Testking CCVP Dumps
- Free Pass4sure 642-436 CVOICE Dumps
