Actualtests 642-453
642-453 : Gateway Gatekeeper Last Updated Monday, April 21, 2008 with 114 Questions
Gateway Gatekeeper(GWGK)
Exam Number: 642-453 Exam
Associated Certifications: Gateway Gatekeeper(GWGK)
Duration: 60 Q&As
Available Language(s): English
Exam Details
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.
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642-453 Exam: Actualtests’s Gateway Gatekeeper(GWGK) PDF
The Gateway Gatekeeper(GWGK) PDF for preparing for the 642-453 exam - Actualtests’s Gateway Gatekeeper(GWGK). Actualtests is your premier source for practice tests, and true testing environment. Nothing will prepare you for your next exam like a Actualtests. You find it all here at ciscoexams.org.
QUESTION 1:
When configuring a gatekeeper-controlled H.255 trunk, what is the maximum number of
Cisco Unified CallManager systems that can be assigned to the trunk?
A. 4
B. 1
C. 3
D. 6
E. 2
F. 8
Answer: C
QUESTION 2:
Which codec complexity should be configured to maximize the number of simultaneous
voice calls that can be supported by a PVDM2-16?
A. Flex
B. High
C. Medium
D. Low
Answer: A
QUESTION 3:
Exhibit:
Please study the exhibit carefully. Certkiller .com is integrating a Cisco Unified
CallManager system with the existing PBX via an E1 QSIG trunk. After the initial
configuration, no calls can be placed from IP phones to PBX phones. How can this
problem be resolved?
A. Add the command isdn negotiate-bchan to the serial interface.
B. Increase the ISDN T302 timer to allow more time for call setup.
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C. Change the channel selection order from descending to ascending.
D. Add the command isdn contiguous-bchan to the serial interface.
Answer: A
QUESTION 4:
Which two statements are correct descriptions of bandwidth management and bandwidth
control? (Choose two.)
A. Both bandwidth management and bandwidth control are H.323 mandatory functions.
B. Bandwidth management is an H.323 optional function and bandwidth control is a
mandatory function.
C. Bandwidth management manages endpoint bandwidth and provides intrazone call
admission control, while bandwidth control provides interzone call admission control.
D. Bandwidth management manages endpoint bandwidth requirements and bandwidth
control provides call admission control.
E. Bandwidth management provides call admission control and bandwidth control
manages endpoint bandwidth requirements.
F. Bandwidth management is an H.323 mandatory function and bandwidth control is an
optional function.
Answer: B,E
QUESTION 5:
Please study the exhibit carefully. Certkiller .com needs to have the receptionist at
extension 5000 handle all callers who exit their auto attendant by pressing “0″. After
changing the Operator parameter from 5500 to 5000, callers are still sent to extension
5500 when they press “0″ in the auto attendant. What needs to be done to correct this
issue?
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A. The aa application needs to be reloaded in order to recognize the parameter changes.
B. The application needs to be edited to point to the correct operator.
C. Dial peer 1 needs to be restarted using the shutdown and no shutdown commands.
D. The Operator parameter should be configured under dial peer 1 using the param
command.
E. The gateway needs to be reloaded for application changes to take effect.
Answer: A
QUESTION 6:
Which issue found in CAS T1s can be eliminated by converting to PRI?
A. the inability to send and receive ANI on all DS0s
B. long call setup due to few signaling bits per frame
C. voice quality issues involving robbed bits
D. PSTN switch type mismatches
E. outgoing call channel order mismatch (descending vs. ascending)
Answer: A
QUESTION 7:
You are working with a client who is interested in deploying a distributed IP telephony
call-processing solution among the three corporate campuses. Each campus will have a
Cisco Unified CallManager cluster and a gateway to the PSTN. Which three steps are
required for a successful gatekeeper deployment? (Choose three.)
A. determining if each zone will be supported by more than one gatekeeper
B. ensuring the correct location of voice gateways in the network
C. implementing the correct WAN topology
D. determining the intrasite modem and fax traffic patterns
E. provisioning a common codec for all WAN connections
F. determining if gatekeeper redundancy or high availability is required
Answer: C,E,F
QUESTION 8:
How can you configure an MGCP gateway so that it is controlled by the Cisco Unified
CallManager?
A. The Cisco Unified CallManager and the MGCP gateway are peers; the Cisco Unified
CallManager does not control MGCP gateways.
B. Use the telephony-service ccm-compatible gateway command to enable the Cisco
Unified CallManager to control the gateway.
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C. Configure the MGCP gateway in the Cisco Unified CallManager; the gateway will
automatically be sent a configuration.
D. Configure the gateway on the Cisco Unified CallManager, configure the gateway for
MGCP, and define the Cisco Unified CallManager as the call agent on the gateway.
E. Use the mgcp-gateway voip srcadd gateway command to bind the gateway to the
Cisco Unified CallManager.
Answer: D
QUESTION 9:
When an IP-to-IP gateway registers with a gatekeeper, what type of endpoint is the
gateway listed as?
A. VOIP
B. H323-GW
C. gateway
D. IP-IP
Answer: B
QUESTION 10:
DRAG DROP
Network topology exhibit
You work as a network technician at Certkiller .com. You study the network topology
exhibit carefully. You are required to configure the Certkiller 1 Gatekeeper, Your boss,
Miss Certkiller, has already entered the IP address command. A command can be
entered both as a interface command and as a gatekeeper command. You are not required
to use all options.
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