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QUESTION 44
Network topology exhibit

Refer to the exhibit. Callers are complaining that the frequently get a busy signal when calling from IP phones to the PBX. Analysis of the problem shows that conflicting route patterns in the Cisco CallManager and the PBX are causing some calls to trombone across the T1 CAS connection. Which action will prevent future problems with tromboning?
A. Implement COR in the gateway to prevent calls originating on the PBX from being routed back to the
PBX across the T1.
B. Make sure the gateway’s CSS does not include any partions that have route patterns whose target is the gateway.
C. Make sure the gateway’s partition does not include any route patterns whose target is the gateway.
D. Set the Forward Maximum Hop Count service parameter in Cisco CallManager to 2.

Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 45
Certkiller .com has two routes to send calls from its headquarters to its subsidiary.
Headquarters: Manchester, NH–603-643-XXXX
Subsidiary: Seattle, WA–206-532-XXXX
The connections are made as follows:
First choice: WAN over router 10.172.16.111
Second choice: PSTN on port 1/0:1
Which two sets of Cisco IOS commands will provide this routing from the headquarters to the subsidiary?
(Choose two.)

A. dial-peer voice 10 pots destination-address 1206532…. session-target port 1/0:1 preference 0
B. dial-peer voice 11 voip destination-address 1206532…. session-target ipv4:10.172.16.111 preference 0
C. dial-peer voice 12 pots destination-address 1206532…. session-target port 1/0:1 preference 1
D. dial-peer voice 13 voip destination-address 1206532…. session-target ipv4:10.172.16.111 preference 1

Correct Answer: BC Section: (none)Explanation
Explanation/Reference:
QUESTION 46
When deployed in an enterprise network, which three features does an IP-to-IP gateway use support for video? (Choose three.)
A. endpoint functions
B. proxy functions
C. RSVP with call signaling
D. near-end camera control
E. simultaneous data, audio, and video conferencing
F. Microsoft NetMeeting data collaboration

Correct Answer: BCE Section: (none)Explanation Explanation/Reference:
Case Study Certkiller com, Scenario Certkiller .com is expanding their facility. As part of the expansion Certkiller .com plans to implement a CallManager system to provide phone support. The expansion will be phased over a 6 month period requiring the CallManager to be integrated with the existing PBX system. In order to minimize the impact on office staff, the office manager wants to only train employees on new phone procedures when they have been migrated to the CallManager system. The existing voicemail will be used until all employees are migrated to the CallManager. Once the migration is complete, Cisco Unity will be used to provide Unified Messaging. Certkiller .com currently has two T1s to the phone company for local and inbound calls and a T1 dedicated for Long Distance calling. There are 200 DIDs and Certkiller employees can call each other via four digit expressions. The migration schedule calls for moving the PSTN connections to the CallManager after all employees are migrated. To facilitate the migration, a 3825 router will be used to provide voice gateway services. Two T1’s will be used to connect the 3825 and the PBX. These T1s will be used to support calls between IP phones and PBX phones. The PSTN ** MISSING ***
Case study #1, (3 Questions)
QUESTION 47
While testing calls between the CallManager and PBX, it is determined that IP phones can place and
receive calls from the PBX phones but cannot receive calls from the PSTN on their DID.
What is the most likely cause of this problem?

A. The PBX is restricting trunk to trunk transfers
B. The PBX is not sending the correct digits to the CallManager.
C. The gateway’s CSS does not contain the partition assigned to the IP phones.
D. The IP phones’ CSS does not contain the partition assigned to the gateway.

Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 48
Which three statements describe how the T1s should be provisioned to provide maximum capacity while maintaining features such as voicemail support and callerid? Select three.
A. The T1s should be CAS circuits. One circuit should be configured for e&m-fgd and one circuit should be configured for fgd-eana.
B. The T1s should be CAS circuits configured for fxo-loop-start.
C. The T1s should be CCS circuits. The PBX should be configured for network side and the gateway for the user side.
D. The gateway controller’s clock source should be configured as line.
E. The T1s should be configured as NFAS to provide maximum capacity.
F. The T1s should be configured for QSIG.

Correct Answer: CDF Section: (none) Explanation
Explanation/Reference:
QUESTION 49
While talking to customers, Certkiller sales staff frequently conference in technical support. Certkiller .com would like to support 12 simultanous conference bridges with 4 participants each. What is the minimum number of DSPs required in the gateway?
B. 3
C. 5
D. 12
E. 15

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
Case Study #2, Scenario Network Topology Exhibit:

Simulation output exhibit #1: Simulation output exhibit #2: Simulation output exhibit #3: Simulation output exhibit #4:
Case Study #2, 5 Questions
QUESTION 50
Which configuration change will provide caller-name display for Phone Certkiller D?
A. voice-port 3/0 followed by caller-name Lobby
B. voice-port 3/0 followed by station-id name Lobby
C. dial-peer voice 3100 pots followed by caller-name Lobby
D. dial-peer voice 3100 pots followed by station-id name Lobby

Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 51
Phone Certkiller D has placed a call to 911. Which number will appear as the caller ID?
A. 3000
B. 3100
C. 9722323000
D. 9722323100

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 52
Which two phones at Certkiller Branch A can be reached from the PSTN while operating in SRST mode? Select two.
A. Certkiller D
B. Certkiller E
C. Certkiller F
D. Certkiller G

Correct Answer: BC Section: (none) Explanation
Explanation/Reference:
Note: The exhibits shown are not enough to determine answer for this question.
QUESTION 53
Certkiller Branch A experienced an IP WAN outage and is operating in SRST mode. Which three phones can Certkiller F call while in SRST mode? Select three
A. Certkiller A
B. Certkiller B
C. Certkiller C
D. Certkiller D
E. Certkiller G

Correct Answer: ACE Section: (none)Explanation
Explanation/Reference:
Note: The exhibits shown are not enough to determine answer for this question.
QUESTION 54
Which configuration will support fax pass-through while in MGCP mode? Select one
A. Enable fax pass-through using the mgcp command.
B. Enable fax pass-through using the ccm-manager command.
C. Disable fax relay using the ccm-manager command.
D. Disable fax relay using the mgcp command.

Correct Answer: A Section: (none) Explanation
Explanation/Reference:
The command mgcp modem passthrough voip mode nse found in exihibit 4 supports fax pass-through in MGCP mode.

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