Prepking 920-139 Exam Questions

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Exam : NORTEL 920-139

Title : NNCDS Multimedia

Communication

Server(MCS)5100 3.0

Version : R6.1



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1. In phase 1 of the MCS 5100 3.0 system logical hierarchy design, the comparison of MCS clients to

Circuit-switched telephones produces what data?

A. MCS client penetration

B. Site Preference information

C. Circuit-switched traffic loads

D. Converged Desktop agent penetration

Answer:A

2. Click the exhibit button. In the non Call Center Enterprise deployment depicted below, what would be the

percentage of traffic originating from the other networks terminating to the Site A MCS 5100 3.0 system

compared to the total traffic?

A. Unable to determine with the presented information.

B. Traffic flows between communities are usually quite symmetrical, so s+t+u should equal 50%.

C. Traffic flows between communities are usually unbalanced with more out-going then in-coming traffic, so

s+t+u would be less than 50%.

D. Traffic flows between communities are usually unbalanced with more in-coming then out-going traffic, so



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s+t+u would be greater than 50%.

Answer: B

3. A customer has decided to purchase an MCS 5100 3.0 four-server system. In designing the MCS 5100

logical hierarchy, which information is required to determine the best location for local Points of Presence

(PoPs)? (Choose two.)

A. the location of the Database Module

B. the locations of the SIP client population

C. the locations of the PSTN and PRI trunks

D. the location of the Network Control Center (NCC)

Answer: BC

4. A company plans to install a non-redundant MCS 5100 3.0 system in a dual-network deployment. A RTP

Media Portal will also be installed to protect the integrity of the private MCS 5100 network, and to provide

multimedia services for SIP clients within and outside of the private network. How should the RTP Media

Portal be connected to the network?

A. both Ethernet interfaces are within the private MCS 5100 network

B. both Ethernet interfaces are within the Enterprise public network

C. in the boundary between the private and public networks

D. in the boundary between the private and public networks as well as in series with a firewall

Answer: C

5. A customer owns and supports an existing IP-based Enterprise network. They plan to deploy an MCS

5100 3.0 system with a SIP PRI Gateway and a H.323 Gatekeeper as an application overlay on their

existing network. According to the MCS 5100 logical hierarchy, the third phase of the design process is the

planning for voice, video, collaboration, and Instant Messaging (IM) traffic. Which two MCS 5100

component loads should you compute? (Choose two.)

A. Compute media loads on each of the RTP Media Portals.

B. Compute media loads on each of the Media Application Servers.

C. Compute total media loads on each of the MCS 5100 media components.

D. Compute session setup loads on each of the SIP PRI Gateways.



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E. Compute session setup loads on each of the H.323 Gatekeepers.

F. Compute session setup loads on each of the MCS 5100 signaling components.

Answer: CF


5100 3.0 system as an application overlay on their existing network. According to the MCS 5100 logical

hierarchy, which two levels of the logical hierarchy should be co-located given the connectivity requirements

between the SIP Application Module and Database Module?

A. Points-of-Presence (PoPs) and Network Control Center (NCC)

B. Media Concentration Center (MCC) and Points-of-Presence (PoPs)

C. Network Control Center (NCC) and Network Signaling Center (NSC)

D. Network Signaling Center (NSC) and Media Concentration Center (MCC)

Answer: C

7. A customer has an MCS 5100 3.0 four-server system. To implement redundancy and increase the

capacity of their system they have decided to upgrade it to an eight-server system. Currently, the

Management and Accounting Modules are installed on the same server (S1) in the four-server system. A

second server (S2) has been installed to upgrade the system to the eight servers. How will redundancy be

provided for the Management and Accounting Modules in the eight-server system?

A. The Management and Accounting Modules will be active on both S1 and S2 and will load share the

traffic and provide hot backup.

B. The active Management and Accounting Modules will be on S1 and the standby Management and

Accounting Modules will be on S2.

C. The active Management and standby Accounting Modules will be on S1 and the active Accounting and

standby Management Modules will be on S2.

D. The Management Module will be active on S1 and the Accounting Module will be active on S2. An

additional server will be required to provide redundancy for both modules.

Answer: C

8. A customer is designing a new MCS 5100 3.0 system and wants to install an H.323 Gatekeeper to



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B. Configure the MCS 5100 system in a dual-network deployment.

C. Configure one of the two SIP Application servers as a standby server.

D. Configure the MCS 5100 system in a dual-network deployment and add an additional SIP Application

server as a standby server.

Answer:A


5100 3.0 system as an application overlay on their existing network. According to the MCS 5100 logical

hierarchy, the third phase of the design process is the planning for voice, video, collaboration, and Instant

Messaging (IM) traffic. Assume that you have the following traffic information: ? Planned traffic capacity at

each Point-of-Presence (PoP) ? Client type mix at each PoP ? Traffic characterization (average holding

time, Erlangs or Centum Call Seconds [CCS] for each subscriber) What additional information is required

for detailed traffic characteristic identification?

A. CODEC distribution

B. Public Switched Telephone Network (PSTN) traffic

C. Traffic distribution model between PoPs and the PSTN

D. Traffic distribution characteristics from the MCS 5100 PoPs to the PSTN

Answer:A

12. A customer with an MCS 5100 3.0 system wants to have full redundancy for an IP Client Manager

Server. The first level of redundancy is achieved by deploying two IPCM servers.What is the component

which provides the second level of redundancy in case both IPCM servers fail?

A. Client Adapter

B. Provisioning Module

C. Management Module

D. Multimedia PC Client

Answer: D

13. A customer plans to install an MCS 5100 3.0 system and is designing the MCS 5100 logical hierarchy.

The IP Client Managers (IPCMs) and the Web Client Managers (WCMs) will be placed at the local



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Points-of-Presence (PoPs). They will be closer to the MCS client site instead of the Network Signaling

Center (NSC) site. What justifies the decision to place the IPCMs and WCMs at the local PoPs?

A. PoP locations provide better access to the Database Module.

B. PoP locations provide better access to the SIP Application Module.

C. There is a better response time between the IPCMs/WCMs and the media clients.

D. There is a better response time between the IPCMs/WCMs and H.323 Gatekeepers.

Answer: C

14. A customer plans to deploy an MCS 5100 3.0 system. They want to know the process for viewing

alarms generated by the Provisioning Module so that they are available for analysis should an issue arise

with the Provisioning Module. How does the appropriate management tool on the MCS 5100 system

provide this capability?

A. The alarms are stored on the Provisioning Module and can be viewed using the Event Browser on the

Provisioning Client.

B. The alarms are stored on the Provisioning Module and can be viewed through the Alarm Browser on the

System Management Console.

C. The alarms are sent to an SNMP Manager and can then be viewed on the console for the SNMP

Manager.

D. The alarms are sent to the Management Module and can then be viewed through the Alarm Browser on

the System Management Console.

Answer: D

15. A customer wants the ability to view real-time UDP counters of RTP traffic levels to and from a given

machine within an MCS 5100 3.0 system deployment. Which management interface can produce this

display?

A. Provisioning Client

B. System Management Console

C. Oracle Enterprise Management (OEM) Console

D. Media Application Server [MAS] Management Console

Answer: D



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16. A customer requires a hard copy of an MCS 5100 3.0 system alarm which occurred in the past. Which

management interface / tool would you use to find this event and print it out?

A. The console for the SNMP Manager should retain a copy of the log.

B. Use the log and OM browsers on the System Management Console.

C. The alarm can be found with the Media Application Server [MAS] Management Console OAM Browser

tool.

D. Search the stored logs on the Provisioning Module and view them in the Log Browser on the

Provisioning Client.

Answer: B

17. A customer wants to display banner adds to announce new features to agents. What tool should you

choose in your design to provide this functionality?

A. Personal Agent

B. Converged Desktop

C. SIP Multimedia Client

D. Converged Multimedia Desktop

Answer:A

18. Your are working on the design of a MCS 5100 Rls. 3.0 system. The customer is asking you to provide

support for the functionality: ? Users should be allowed to manage their preferences from any location

with no software installation. Which tool should you suggest to provide this functionality?

A. Personal Agent

B. Converged Desktop

C. SIP Multimedia Client

D. Converged Multimedia Desktop

Answer:A

19. Click the exhibit button. A customer has eliminated the dedicated inter-site trunks. Which traffic flow and

hardware will be supporting a PBX-to-PBX call?



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A. Flow #2 via PBX to PBX Trunking.

B. Flow #3 via the SIP Application Module.

C. Flow #4 via the MCP Trunking Gateway.

D. The dedicated inter-site trunks must remain; they are required to complete PBX-to-PBX calls.

Answer: C

20. What hardware must be installed to provide the bearer path for the speech connections to connect a

customer's CallPilot 2.5 system to their MCS 5100 3.0 system?

A. RTP Media Portal

B. C. 323 Gatekeeper

D. In-reach iTouch terminal server

E. The AudioCodes Mediant 2000 T1/CAS Gateway

Answer: E

21. A customer plans to deploy an MCS 5100 3.0 system. The planned MCS 5100 penetration is small (less

than 5%) with an existing co-located Private Branch Exchange (PBX) connected to a SIP PRI Gateway.

They need to determine how to provide Public Switched Telephone Network (PSTN) access to the MCS

5100 users. Which solution would be most advantageous for the customer?



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