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Cisco Rich Media Communications(CRMC) : 642-481 Exam

Exam Number/Code: 642-481
Exam Name: Cisco Rich Media Communications(CRMC)
VUE Code: 642-481
Questions Type: Single choice,
Question Numbers of Real-exam: 75-85 questions

Exam : Cisco 642481

Title :

Cisco Rich Media

Communications

Update : Demo

1.Bob’s Bicycles recently implemented a H.323 videoconferencing solution, and wishes to conduct

videoconferences with the main supplier over the extranet using the existing four-digit numbering plan at each company. Due to overlapping dial plans, the called digits must be manipulated to allow the video
calls to be completed. Which solution can support this? A. H.323 proxy
B. gatekeeper

C. directory gatekeeper D. IP-to-IP gateway Answer: D

2. Which device allows a H.323 video endpoint to establish a conference with a videoconferencing system that is connected to the PSTN?
A. H.225 gateway B. H.320 gateway C. H.323 proxy
D. HD gateway

Answer: B

3. How is a H.323 MCU defined in Cisco CallManager so that H.323 endpoints can communicate with endpoints that are controlled by Cisco CallManager?
A. as a H.320 gateway

B. as a H.323 gateway

C. as a gatekeeper-controlled H.225 trunk

D. as a gatekeeper-controlled intercluster trunk

Answer: C

4. A customer wants to simultaneously support H.323 conferences with an aggregate of 20 active participants, and SCCP videoconferences with an aggregate of 30 active participants. All video sessions will use voice-activated switching. Which device should be deployed to support this?
A. Cisco IPVC 3511 Multipoint Control Unit

B. Cisco IPVC 3511 MCU E

C. Cisco IPVC 3540-03A with EMP

D. Cisco IPVC 3540 Transcoder Module E. Cisco IPVC 3540-10A with EMP Answer: E

5. Which two statements accurately describe the EMP? (Choose two.)

A. It increases the number of voice-activated sessions that are supported. B. It increases the number of continuous presence layouts.
C. It increases the number of audio-only conference sessions that are supported. D. It allows the MCU to perform rate matching.
E. It is required for simultaneous support for H.323 and SCCP continuous presence sessions. Answer: BE

6. Bob’s Bicycles currently has a room-based videoconferencing system that is connected to the PSTN

via three BRIs. The company is converting to H.323 and would like to continue using the BRIs to make video calls to the suppliers. Which device should the company deploy?
A. Cisco IPVC 3511

B. Cisco IPVC 3521

C. Cisco IPVC 3526

D. Cisco IPVC 3540

Answer: B

7. Which call would most likely require an audio transcoder? A. 128-kbps ISDN call to MCU
B. 128-kbps H.323 call to MCU

C. 128-kbps ISDN call to H.323 endpoint D. 384-kbps ISDN call to H.323 endpoint E. 384-kbps H.323 call to MCU
Answer: A

8. The Acme Roller Skates Company has a single Cisco IPVC 3511 MCUE. At present there are two conferences

occurring as follows: A third conference is desired with the following requirements:

Conference 3: three conference participants What will occur when the third conference is attempted?

A. The third conference will succeed as desired.

B. The third conference will succeed, but without the enhanced continuous presence.

C. The third conference will fail because an IPVC 3511 MCU does not have the resources for three conferences of three people each.
D. The third conference will fail because the EMP module does not have the resources to provide the number of required services.
Answer: A

9. A customer has deployed a Cisco IPVC 3511 MCUE. Which three features will be available? (Choose three.)
A. connection to H.320 systems using up to four BRIs B. connection to H.320 systems using up to two PRIs C. audio transcoding
D. port configuration for both SCCP and H.323

E. conferencing up to 15 voice-activated sessions

F. conferencing up to 15 continuous presence sessions

Answer: CEF

10. A company has a requirement for up to 10 simultaneous conferences of four people each, and each conference requires 384-kbps to 128-kbps transrating and H.261 to H.263 video transcoding. What
should this company purchase?

A. one Cisco IPVC 3540 Transcoder Module for MC06A

B. one Cisco IPVC 3540 Transcoder Module for MC06A with an EMP blade

C. one Cisco IPVC 3540 Transcoder Module for MC06A with an EMP3 blade

D. two Cisco IPVC 3540 Transcoder Modules for MC06A

E. two Cisco IPVC 3540 Transcoder Modules for MC06A, each with an EMP blade

F. two Cisco IPVC 3540 Transcoder Modules for MC06A, each with an EMP3 blade

Answer: C

11. User A and User B are in a video call using Cisco VT Advantage. The call was set up via the local

Cisco CallManager. User A and User B determine that they need to add User C to the call. User A

attempts to conference in User C, but there are no more SCCP ports available on the MCU. What will be the outcome of the conference attempt?
A. The conference will proceed with audio and video using available H.323 ports on the MCU.

B. The conference will proceed, but only audio will be available.

C. The conference will fail, but the video call between User A and User B will proceed.

D. The conference will fail; User A and User B will be disconnected.

Answer: B

12. The Acme Roller Skates Company has its corporate HQ in Seattle, with remote sales offices in Denver, Chicago, New York, and Atlanta. The company is in the process of transitioning the H.320 videoconferencing system to an IP videoconferencing system.
The company has installed an MCU at the corporate HQ, but the remote offices still have H.320 terminal endpoints. A Cisco IPVC 3526 PRI Videoconferencing Gateway has been installed to allow the remote offices to dial into videoconferences. The telephony provider has given the company one phone number
for the PRI, which can route to all the channels on the PRI. Which two methods are best for routing calls from the gateway to the MCU for conferences? (Choose two.)
A. DID B. IVR
C. TCS4

D. Default Extension

Answer: BC

13. The Acme Roller Skates Company has its corporate HQ in Seattle, with remote sales offices in Denver, Chicago, New York, and Atlanta. The company is in the process of transitioning the H.320 videoconferencing system to an IP videoconferencing system.
The company has installed an MCU at the corporate HQ, but the remote offices still have H.320 terminal endpoints. A Cisco IPVC 3526 PRI Videoconferencing Gateway has been installed to allow the remote

offices to dial into videoconferences. The telephony provider has given the company a block of 100 phone

numbers for the PRI, which can route to all the channels on the PRI. Which method will be best for routing calls from the gateway to the MCU or other endpoints?
A. DID B. IVR
C. TCS4

D. Default Extension

Answer: A

14. A company would like to provide customized voice prompts for users who are dialing into videoconferences. Which component should be used to support customized voice prompts?
A. Cisco CallManager

B. the IVR built into the gateway

C. the IVR built into the video gateway

D. Cisco peripheral gateway

E. the built-in IVR of the MCU Answer: E

15. Which three factors must be considered when designing a H.323 videoconferencing dial plan?

(Choose three.)

A. the number of sites in the enterprise

B. the number and location of gatekeepers

C. the incoming PSTN call routing method

D. the DNs and location of conferencing MCUs to be deployed

E. the videoconferencing features and applications to be deployed

F. the location of voice gateways

Answer: ACD

16. A startup company is designing a converged network, which will include video telephony and H.323

videoconferencing. Which two are key elements of the videoconferencing dial-plan design? (Choose two.)

A. Cisco CallManager trunks

B. zone prefixes

C. gateway service prefixes

D. gatekeeper service prefixes

Answer: BC

17. The Acme Anvils Company is a large enterprise with many office sites. The company is planning to add IP videoconferencing to the existing IP telephony network. It has been determined that an MCU will
be placed in each site. External participants in videoconferences will dial in using DID to reach the conference MCUs. Internal participants will dial the proper extension numbers for conferences. What
does Cisco recommend for the videoconferencing gateway placement and the IP-videoconferencing dial plan?
A. a single videoconferencing gateway with a single zone prefix for all MCUs

B. a single videoconferencing gateway, with the MCUs at each site having a separate zone prefix that is

independent of the area code

C. a videoconferencing gateway in every site, with an MCU zone prefix for each site that is independent of the area code
D. a videoconferencing gateway in every site, and the MCU zone prefixes matching the local area code

E. a videoconferencing gateway in every site, and all the MCUs placed in a single zone prefix

Answer: D

18. The Acme Jet Boats Company is installing an IP videoconferencing system in the corporate office. Users need the ability to dial out to external H.320 videoconferences. The company is installing a videoconferencing gateway, but is concerned that outside callers may be able to dial the gateway and then hairpin back out to the PSTN.
What does Cisco recommend to ensure that this cannot happen?

A. Set up the gatekeeper to allow only outgoing calls that originate internally.

B. Configure the Cisco CallManager so that the gateway terminates hairpinned calls. C. Configure the gateway to allow only outgoing calls that originate internally.
D. Use the “#” digit in the service prefix so that hairpinned call attempts will fail. Answer: D

19. The Acme Wakeboards Company is planning to install an IP videoconferencing system. One vendor needs to participate in weekly videoconferences using a H.320 video endpoint at a rate of less than or
equal to 512 kbps. All other conference participants are internal staff. Which product should the company install to allow the remote vendor to join into the weekly conference?
A. Cisco IPVC 3511 Multipoint Control Unit

B. Cisco IPVC 3521 BRI Videoconferencing Gateway

C. Cisco IPVC 3526 PRI Videoconferencing Gateway

D. Cisco IPVC 3540 Series Videoconferencing System

E. Cisco IPVC 3544 Chassis

Answer: B

20. The Acme Snowboards Company is planning to install an IP videoconferencing system. Up to 10 vendors need to participate in weekly videoconferences using H.320 video endpoints at 128 kbps. All other conference participants will be internal staff using the IP videoconferencing system. Which two products should the company install to allow the remote vendors to join into the weekly conference?
(Choose two.)

A. Cisco IPVC 3511 Multipoint Control Unit

B. Cisco IPVC 3521 BRI Videoconferencing Gateway C. Cisco IPVC 3526 PRI Videoconferencing Gateway D. Cisco IPVC 3544 Chassis
Answer: AC

21. When routing to both audio and video devices, with which device does Cisco recommend enabling

AAR?

A. Tandberg SCCP endpoint

B. H.323 client

C. IP phone

D. Cisco VT Advantage

Answer: C

22. Refer to the exhibit.The Post Road Communications Group is using Cisco MeetingPlace at its world headquarters; the company also has a Cisco CallManager cluster. The Cisco CallManager cluster includes a video deployment with both SCCP and H.323 video endpoints. The videoconferencing capability is provided by a Cisco IPVC 3540 Series Videoconferencing System.

Using the topology in the exhibit, what should be the video gateway location?

A. A B. B C. C D. D

Answer: B

23. Which method of call routing would require a user to press the correct line on the phone when making

a video call?

A. Assign at least two different directory numbers on each video-enabled device in the Cisco CallManager cluster, with one line for audio and another line for video. The two lines can then be placed in different partitions and given different calling search spaces. Assign multiple access codes to both voice and video calls.
B. Assign at least two different directory numbers on each video-enabled device in the Cisco CallManager cluster, with one line for audio and another line for video. The two lines can then be placed in different partitions and given different calling search spaces.
C. Assign one directory number to each video-enabled device in the Cisco CallManager cluster, with each line placed in different partitions and given different calling search spaces.
D. Assign multiple access codes to both voice and video calls. Answer: B

24. The Greene Oat Company has a central site that is connected to a branch office via a 1.544-Mbps T1

Frame Relay circuit. The branch office has 20 video-enabled users in it. Least cost routing is used. It is required that all 20 users are able to use video services simultaneously for internal calls. Which solution best meets this objective?
A. Route video calls up to the central site in order to save on toll charges. B. Upgrade the 1.544-Mbps T1 circuit to higher bandwidth.

C. Deploy an IP-videoconferencing video gateway at the branch office and not bother with LCR.

D. Use the Retry Video Call as Audio feature to reroute video calls as voice-only calls if they exceed the available bandwidth.
Answer: B

25. A company needs to integrate H.323 videoconferencing devices. The gatekeeper that is used must be dedicated to this purpose. What is the term that is used to describe this particular gatekeeper
functionality?

A. Cisco IOS Multiservice Gateway

B. Cisco via-zone gatekeeper

C. Cisco Multimedia Conference Manager Gatekeeper

D. intercluster trunk gatekeeper

Answer: C

26. How should a gatekeeper, the Cisco CallManager, and an IP-videoconferencing MCU be configured

so that calls can be properly routed when an MCU dials out to the E.164 address of an endpoint?

A. The MCU must register with the Cisco CallManager as an alternate gatekeeper.

B. The MCU must register with the gatekeeper, and the Cisco CallManager must register with the MCU

with a H.225 trunk.

C. The MCU must register with a H.225 gatekeeper-controlled trunk to the gatekeeper, and the Cisco

CallManager must be registered with the gatekeeper.

D. The MCU must register with the gatekeeper, and the Cisco CallManager must register to the

gatekeeper with a H.225 gatekeeper-controlled trunk.

Answer: D

27. Refer to the exhibit. A customer is interested in using videoconferencing to link offices for regional, district, and area sales meetings. The customer currently uses IP telephony and has an IP WAN linking all the remote offices. The customer is concerned that a large number of videoconferences may use too
much bandwidth, impacting the ability of other users to accomplish work on the network. How should

MCUs be configured to support this customer and minimize bandwidth consumption?

A. a single-level conference with a centralized MCU at headquarters and cascaded media processors at

each regional location

B. a two-level conference with a centralized MCU media processor at headquarters and cascaded media processors at each regional location
C. a single-level conference with a centralized media processor at headquarters and cascaded media processors at each regional location

D. a two-level conference with an MCU at headquarters and cascaded MCUs at each regional location

Answer: D

28. How many streams are required to each participant from the MCU with EMP support, if it is providing the services to transrate from 768 kbps to 384 kbps and to provide continuous presence with text overlay?
A. one B. two C. three D. four
Answer: B

29. Which three features are IP-videoconferencing MCU network enhancements? (Choose three.)

A. bandwidth optimization tools

B. full compliance with RFC 3261

C. interoperability with Microsoft Live Communication Server and Windows Messenger

D. improved serviceability such as alternate gatekeepers

E. RAI/RAC Answer: ADE

30. Which feature automatically switches between a range of video layouts according to the number of participants joining or leaving a conference?
A. continuous presence

B. dynamic presence

C. dynamic layout

D. rate matching

E. automatic down-speeding

Answer: C

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“Cisco Rich Media Communications(CRMC)”, also known as 642-481 exam, is a Cisco certification.
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Questions and Answers : 78 Q&A
Updated: March 20th , 2008
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The Cisco Rich Media Communications 642-481CRMC exam tests the candidate’s knowledge and skills to provide presales technical support, design, installation, configuration, and maintenance of Cisco rich media solutions based on Cisco Unified MeetingPlace Express and Cisco Unified Videoconferencing.

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