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cisco Gateway Gatekeeper(GWGK) : 642-453 Exam

Exam Number/Code: 642-453
Exam Name: Gateway Gatekeeper(GWGK)
VUE Code: 642-453
Questions Type: Single choice, Multiple choice, Simulate,
Real Exam Question Numbers: 60 questions
Passing Scores: About 800 scores
Exam Language(s): English

Exam Description Introduction
The Gateway Gatekeeper 642-453 GWGK is the exam associated with the CCVP certification. Candidates can prepare for this exam by taking the Gateway Gatekeeper (GWGK) course. This exam tests a candidate’s knowledge of the implementation of Cisco gateways and gatekeepers, including integration of a VoIP network to both PSTN and TDM equipment. Topics covered include implementing dial plans and advanced gateway features such as SRST and DSP resources, implementing gatekeepers and directory gatekeepers to provide hierarchical dial plan resolution, and call admission control.

Exam Topics
The following information provides general guidelines for the content likely to be included on this 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 purposed the guidelines below may change at any time without notice.

Explain the function and interoperation of voice & video Gateways within an IP Communications network
Identify and describe the appropriate gateway signaling protocol to meet requirements
Identify and describe the appropriate digital line protocol to meet requirements
Identify and describe the appropriate analog line protocol to meet requirements
Describe the appropriate implementation of drop and insert multiplexing
Describe DSP functionality
Describe the different methods of provides fax and modem support

Describe the function and interoperation of Gatekeepers within an IP Communications network
Describe the function of Gatekeepers
Describe the interoperation of a Gatekeeper and a Cisco Unified CallManager
Describe the Gatekeeper Transaction Message Protocol and how it is used
Describe Dynamic Zone Prefix Registration with a Gatekeeper
Describe Gatekeeper clustering

Implement a Gatekeeper
Implement and Configure Gatekeeper to provide call admission control
Implement and Configure Gatekeeper to provide dial-plan resolution
Configure a Directory Gatekeeper to provide scalability
Implement and Configure redundancy between Gatekeeper devices
Implement and Configure Gatekeeper clustering
Configure a Gateway to register with a Gatekeeper
Configure a Cisco Unified CallManager to register with a Gatekeeper
Verify and troubleshoot Gatekeeper implementations

Implement a Gateway
Configure and verify PRI connectivity
Configure and verify BRI connectivity
Configure and verify CAS connectivity
Configure and verify Analog connectivity
Implement SRST to provide High Availability
Implement media resources on a Gateway
Implement fax and modem support on a Gateway
Configure a Gateway to provide DTMF support
Configure a Gateway to be usable by a Cisco Unified CallManager

Implement a dial-plan
Describe the components of a dial-plan
Configure digit manipulation
Implement call routing
Implement COR
Describe how the Gateway matches dial-peers
Verify and troubleshoot dial-plan implementations

Implement call applications on a Gateway
Describe how to obtain call applications
Configure call applications on a Gateway
Verify and troubleshoot call application implementations

Implement an IP-to-IP Gateway
Describe the IP-to-IP Gateway features and functionality
Configure Gatekeeper to support an IP-to-IP Gateway
Configure IP-to-IP Gateway to provide security
Configure IP-to-IP Gateway to provide protocol and media interworking
Configure IP-to-IP Gateway to provide call admission control
Verify and troubleshoot IP-to-IP Gateway implementations

“Gateway Gatekeeper(GWGK)”, also known as 642-453 exam, is a Cisco certification.
Preparing for the 642-453 exam Searching 642-453 Test Questions, 642-453 Exam, 642-453 Dumps

With the complete collection of questions and answers Q&as with Expert Explanations, Pass4sure has assembled to take you through 60 Q&As to your 642-453 Exam preparation. In the 642-453 exam resources, you will cover every field and category in CCVP helping to ready you for your successful Cisco Certification.

The Gateway Gatekeeper 642-453 GWGK is the exam associated with the CCVP certification. Candidates can prepare for this exam by taking the Gateway Gatekeeper (GWGK) course. This exam tests a candidate’s knowledge of the implementation of Cisco gateways and gatekeepers, including integration of a VoIP network to both PSTN and TDM equipment. Topics covered include implementing dial plans and advanced gateway features such as SRST and DSP resources, implementing gatekeepers and directory gatekeepers to provide hierarchical dial plan resolution, and call admission control.

QUESTION 21:
PassGuide .com wants to route inbound faxes directly to the recipient’s e-mail. Which
gateway fax protocol will support this?
A. T.37
B. Fax Pass-Through
C. T.38
D. Fax Relay
Answer: A
QUESTION 22:
Please study the exhibit carefully. Which dial peer will send calls to the PSTN via the T1
configured as shown?
A. dial-peer voice 1 pots
destination-pattern 9T
port 3/0:0
B. dial-peer voice 1 pots
642-453
www.actualtest.org – The Power of Knowing
destination-pattern 9T
session target 3/0:1
C. dial-peer voice 1 pots
destination-pattern 9T
session target 3/0:0
D. dial-peer voice 1 pots
destination-pattern 9T
port 3/0:1
E. dial-peer voice 1 pots
destination-pattern 9T
port 3/0:24
F. dial-peer voice 1 pots
destination-pattern 9T
session target 3/0:24
Answer: A
QUESTION 23:
DRAG DROP
You work as a network administrator at PassGuide .com.
Your PassGuide trainee PassGuide is curious about gateway signaling protocols and PSTN
trunk types. Assuming all gateways are SRST gateways what will happen to active calls
to or from the PSTN when the gateway fails over the SRST mode (either preserved or
dropped)?
Answer:
QUESTION 24:
A single call is active through an IP-to-IP gateway. If you use the show gatekeeper calls
642-453
www.actualtest.org – The Power of Knowing
command, how many active call legs will be indicated?
A. 4
B. 3
C. 2
D. 1
Answer: C
QUESTION 25:
Which statement accurately describes the amount of bandwidth required for a fax call
using fax pass-through when packet redundancy is not enabled?
A. The fax call uses the same amount of bandwidth as a G.711 voice call.
B. The fax call uses the same amount of bandwidth as a G.729 voice call.
C. The fax call uses 20% more bandwidth than a G.711 voice call because the fax sample
size is smaller.
D. The fax call uses 20% more bandwidth than a G.729 voice call because the fax sample
size is smaller.
E. The fax call uses 20% more bandwidth than a G.729 voice call because the fax sample
size is larger.
F. The fax call uses 20% more bandwidth than a G.711 voice call because the fax sample
size is larger.
Answer: C