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Exam A
QUESTION 1
You are adding a gatekeeper to an H.323 network to provide Call Admission Control. You need to be able to support three concurrent G.711 calls from a specified zone to any other zone. How much interzone bandwidth should be configured in the gatekeeper?
A. 192 Kbps
B. 240 Kbps
C. 384 Kbps
D. 480 Kbps
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 2
Which describes a proper CAC implementation in an H.323 network that uses directory gatekeepers?
A. The bandwidth commands for each zone that is registered with the directory gatekeeper are included in the directory gatekeeper configuration.
B. The zone gatekeepers maintain the bandwidth commands and the directory gatekeeper is only responsible for dial plan resolution.
C. The zone gatekeeper negotiates bandwidth requirements with the target zone gatekeeper by means of an LRQ message forwarded by the directory gatekeeper.
D. The directory gatekeeper controls call bandwidth usage between the zones.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 3
Refer to the exhibit. Which message ID can be used to track this call from the requesting endpoint?
A. 8204
B. 10.100.100.99
C. 10.200.99.99
D. 49579
E. 10.100.100.100
F. 1640003356
Correct Answer: A Section: (none)
Explanation
Explanation/Reference:
QUESTION 4
You have a client who is designing a gateway solution for an IP communications network. The T1 needs to support ANI for both incoming and outgoing calls.How should the gateway be configured?
A. Configure an MGCP gateway so that there are two DS-0 groups on the T1 from the PSTN, one to send ANI and one to receive ANI.
B. Configure an H.323 gateway so that there are two DS-0 groups on the T1 from the PSTN, one to send ANI and one to receive ANI.
C. Configure an MGCP gateway so that there is a single DS-0 group on the T1 to the PSTN, to both send and receive ANI.
D. Configure an H.323 gateway so that there is a single DS-0 group on the T1 to the PSTN, to both send and receive ANI.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 5
Refer to the exhibit. Your customer is using BRIs to the PSTN. Inbound calls can be made without error.
However, outbound calls only succeed if there has been a recent inbound call.
What can be done to correct this issue?
A. Disable status checking for POTS dial peers so outbound call setup will activate the BRI.
B. Configure SPIDs on the BRI so that outbound calls are sent to the correct number.
C. Change the dial peer hunt logic so the appropriate dial peer is always used.
D. Configure preferences to always select dial peer 3.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 6
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. determining the intrasite modem and fax traffic patterns
C. ensuring the correct location of voice gateways in the network
D. provisioning a common codec for all WAN connections
E. implementing the correct WAN topology
F. determining if gatekeeper redundancy or high availability is required
Correct Answer: DEF Section: (none) Explanation
Explanation/Reference:
QUESTION 7
When a WAN link problem occurs, it takes over three minutes for IP phones to become registered with the SRST gateway. What is the most likely cause of this?
A. The WAN link is bouncing.
B. The keepalive timer in the SRST gateway is set too long.
C. Each phone has a list of two alternate Cisco Unified CallManager systems, and it tries to register with each before registering with the SRST gateway.
D. The SRST gateway is an MGCP gateway, and it must stop the MGCP process and switch over to the default H.323 process to initiate the SRST process.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 8
When a C5510 DSP is configured for conferencing, what other services can it be configured to support?
A. transcoding
B. supplementary services
C. voice port termination
D. no other services
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 9
Users are complaining that they are not seeing caller names on calls received from the PSTN. Which debug command can be used to troubleshoot this problem?
A. debug isdn setup
B. debug isdn q921
C. debug isdn q931
D. debug ccs signal
E. debug vpm signal
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 10
Which statement is true regarding Cisco modem relay?
A. It supports the V.150.1 signaling standard.
B. It is supported by some third party vendors.
C. It requires that codec complexity be set to “high” or “flex mode”.
D. It uses more bandwidth than modem pass-through.
E. It is supported on H.323, MGCP, SIP, and SCCP gateways.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 11
Refer to the exhibit. On a router running Cisco IOS version 12.3(14)T, an auto-attendant Tcl script is loaded and a warning message is displayed, stating that the operator parameter has not been registered. See the exhibit for an example of the error. What must you do to continue?
A. nothing, the warning may be ignored
B. register the application with the gatekeeper
C. register the application parameters with the gatekeeper
D. register the application parameters with the application
E. register the application with the Cisco Unified CallManager
F. register the application parameters with the Cisco Unified CallManager
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 12
Which gatekeeper configuration will send all calls between zone hardware and zone appliances through the IP-to-IP gateway in the VIA zone?
A. gatekeeper zone local hardware acme.com 192.168.1.1 zone local appliances acme.com zone local via acme.com
zone prefix hardware 408…….
zone prefix appliances 415…….
no shut
B. gatekeeper zone local hardware acme.com 192.168.1.1 zone local appliances acme.com zone local via acme.com invia via outvia via zone prefix hardware 408* zone prefix appliances 415* no shut
C. gatekeeper zone local hardware acme.com 192.168.1.1 invia VIA outvia VIA zone local appliances acme.com invia VIA outvia VIA zone prefix hardware 408……. zone prefix appliances 415……. no shut
D. gatekeeper zone local hardware acme.com 192.168.1.1 invia VIA outvia VIA zone local appliances acme.com invia VIA outvia VIA zone local VIA acme.com zone prefix hardware 408* zone prefix appliances 415* no shut
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 13
When an IP-to-IP gateway registers with a gatekeeper, what type of endpoint is the gateway listed as?
A. VOIP
B. IP-IP
C. gateway
D. H323-GW
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 14
In which three situations would an IP-to-IP gateway be useful? (Choose three.)
A. two organizations have merged and both use SCCP signaling
B. an organization would like to migrate from H.323 to SIP
C. an organization has deployed a SIP IP telephony solution and needs to connect to a SIP service provider
D. an organization needs to migrate from a Cisco Unified CallManager IP telephony solution based on SCCP to an H.323 solution.
E. an organization using H.323 needs to integrate an acquisition that also uses H.323
F. an organization needs to integrate larger PSTN gateways into their SIP network
Correct Answer: BCE Section: (none) Explanation
Explanation/Reference:
QUESTION 15
Highland Park Property Development is integrating a Cisco Unified CallManager system with the existing PBX via an E1 QSIG trunk. During testing, the first 15 calls work normally. After 15 simultaneous calls, new calls have no audio path when they are established. How can this problem be resolved?
A. Add the command isdn contiguous-bchan to the serial interface.
B. Change the channel selection order from descending to ascending.
C. Add the command isdn negotiate-bchan to the serial interface.
D. Increase the ISDN T302 timer to allow more time for call setup.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 16
Drag Drop
A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference:
Answer: Check certifyme eEngine, Download from Member Center
QUESTION 17
Refer to the exhibit. Horst’s Helicopters has a centralized Cisco Unified CallManager deployment, with SRST implemented on MGCP gateways at the remotes sites. The WAN link to Seattle has failed. All phones in Seattle have registered to the SRST gateway and can call each other internally, but all outside calls fail. Based on the output shown in the exhibit, what is the most likely solution to the problem?
A. configure MCGP fallback on the gateway
B. add the isdn outgoing-voice command to the configuration
C. call the phone provider and report that the PRI link is down
D. enable the outgoing POTS dial peer with the no shutdown command
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 18
Drag Drop A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference:
Answer: Check certifyme eEngine, Download from Member Center
QUESTION 19
Which debug command can be used to troubleshoot an issue with a Tcl script?
A. debug tcl script
B. debug call script
C. debug custom script
D. debug voice application
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 20
Which two dial plan components are required to implement TEHO? (Choose two.)
A. internal numbering plan
B. path selection
C. Class of Service
D. digit manipulation
E. call coverage
Correct Answer: BD Section: (none)
Explanation Explanation/Reference:
QUESTION 21
Refer to the exhibit. 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 destination-pattern 9T port 3/0:1
C. dial-peer voice 1 pots destination-pattern 9T port 3/0:24
D. dial-peer voice 1 pots destination-pattern 9T session target 3/0:0
E. dial-peer voice 1 pots destination-pattern 9T session target 3/0:1
F. dial-peer voice 1 pots destination-pattern 9T session target 3/0:24
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 22
Refer to the exhibit. Users calling to Germany from phones connected to the PBX in Chicago dial the full telephone number. Calls should be re-routed over the WAN to Berlin instead of using the PSTN connection in Chicago. However, the calls are being dropped. Troubleshooting indicates that dialed digits are being sent from the PBX in multiple ISDN information messages. The exhibit contains the output from the show running-config command on Router Which interface configuration will most likely solve the problem?
A. A
B. B
C. C
D. D
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 23
Which two statements are correct descriptions of bandwidth management and bandwidth control? (Choose two.)
A. Bandwidth management is an H.323 optional function and bandwidth control is a mandatory function.
B. Bandwidth management manages endpoint bandwidth requirements and bandwidth control provides call admission control.
C. Both bandwidth management and bandwidth control are H.323 mandatory functions.
D. Bandwidth management provides call admission control and bandwidth control manages endpoint bandwidth requirements.
E. Bandwidth management manages endpoint bandwidth and provides intrazone call admission control, while bandwidth control provides interzone call admission control.
F. Bandwidth management is an H.323 mandatory function and bandwidth control is an optional function.
Correct Answer: AD Section: (none) Explanation
Explanation/Reference:
QUESTION 24
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. 1
B. 2
C. 3
D. 4
E. 6
F. 8
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 25
Drag Drop
A.
B.
C.
D.
Correct Answer:
Section: (none) Explanation
Explanation/Reference:
Answer: Check certifyme eEngine, Download from Member Center
QUESTION 26
A service provider wants to add SIP devices to an existing H.323 voice network. Which Cisco device will allow the SIP devices to use the existing routing structure on the H.323 gatekeeper?
A. UA server
B. SIP proxy server
C. SIP voice gateway
D. H.323 proxy server
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 27
Bob’s Bicycles wants to route inbound faxes directly to the recipient’s e-mail. Which gateway fax protocol will support this?
A. Fax Pass-Through
B. Fax Relay
C. T.37
D. T.38
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 28
Refer to the exhibit. ABC Company 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?
A. The gateway needs to be reloaded for application changes to take effect.
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 aa application needs to be reloaded in order to recognize the parameter changes.
E. The Operator parameter should be configured under dial peer 1 using the param command.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 29
Which issue found in CAS T1s can be eliminated by converting to PRI?
A. PSTN switch type mismatches
B. voice quality issues involving robbed bits
C. the inability to send and receive ANI on all DS0s
D. long call setup due to few signaling bits per frame
E. outgoing call channel order mismatch (descending vs. ascending)
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 30
How can you configure an H.323 gateway so that it is controlled by the Cisco Unified CallManager?
A. Configure the gateway on the Cisco Unified CallManager, and it will automatically configure the gateway.
B. Use the H.323-gateway voip srcadd gateway command to bind the gateway to the Cisco Unified CallManager.
C. Use the telephony-service ccm-compatible gateway command to enable the Cisco Unified CallManager to control the gateway.
D. The Cisco Unified CallManager and the H.323 gateway are peers. The Cisco Unified CallManager does not control H.323 gateways.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 31
ACME Widgets has several geographically dispersed call centers. Calls come into the central location on
H.323 gateways, and are forwarded across WAN links to the correct call centers using G.729 codecs. IVR devices in the call centers are not correctly interpreting digits entered by callers. What can be done to solve this problem?
A. use a DTMF relay to send the digits out of band
B. adjust the DTMF inter-digit timer on the gateway
C. use a transcoder to convert the calls to G.711 at the call center
D. hairpin calls back through the PSTN to the appropriate call center
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
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