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Braindumps of 920-139
VoIP Multimedia Communication Server
(MCS) 5100

Exam Questions, Answers, Braindumps (920-139)

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QUESTION 1
Abc .com is designing a new MCS 5100.3.0 system and wants to configure the system in a single-network deployment. To support the number of users, two SIP application servers will be used and each one will be connected to two Layer 2 switches for redundancy. The customer is concerned about reliability and wants to ensure that the Loss of a SIP application server will NOT impact call processing or existing media flows. Which recommendation should you make to address the customer's reliability concerns?
A. Add an additional SIP Application server as a standby server.
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
QUESTION 2
A large, international customer with multiple sites spanning two countries is considering an MCS 5100.3.0 deployment on their existing. EnterpriseIP network.They are evaluating the possibility of placing the NetworkSignalingCenter(NSC) at their headquarters, given its high network availability, site security, and site diversity. They also have decided to place the SIP application Modules at the headquarters. What information do you need to collect from the customer to justify the placement of the NSC at the headquarters?
A. the planned location of the Database Module
B. the locations of the IP Phone population
C. the number and location of the active Media Application Servers
D. the planned location of the Public Switched Telephone Network (PSTN) connection
Answer: A
QUESTION 3
Abc .com 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
QUESTION 4
Abc .com owns and supports an existing IP-based Enterprisenetwork. They plan to deploy an MCS 5100.3.0 system as an application overlay on their existing network. Accounting 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:
1. Planned traffic capacity at each Point-of-Presence (PoP)
2. Client type mix at each PoP
3. 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
QUESTION 5
Abc .com is designing a new MCS5100.3.0 system and wants to install an H.323 Gatekeeper to interwork with a Communication Server (CS) 1000 Release 4.0 system. They want to ensure that the ability to communicate with the CS 1000system is NOT lost should the H323 Gatekeeper fail. What should you recommend to the customer to address this reliability issue?
A. Configure the SIP Application Module to act as a Failsafe H.323 Gatekeeper.
B. Configure the H.323 Gatekeeper in the CS 1000 system as a Secondary Gatekeeper for the MCS 5100 system.
C. Deploy a second H.323 Gatekeeper on a separate server and define it as the Secondary Gatekeeper
D. Deploy a second H.323 Gatekeeper on a separate server, define both H.323 Gatekeepers as Primary and allow them to load share the traffic.
Answer: C
QUESTION 6
Abc .com 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 client 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

920-139


 

 

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