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Exam : NORTEL 920-141
Title : NNCDS-Communication Server(cs)1000 release 4.0


1. In the process of provisioning a CS 1000S Rls. 0 system, a customer wants to include a branch office into the configuration with 50 analog and 400 IP Phones. Each IP Phone carries 6 Centi-Call Seconds (CCS) each; 50% of the calls go to other IP Phones and 50% go to analog telephones. The Voice Gateway Media Cards (VGMCs) for the Enterprise Media Gateway 1000B have a call capacity of 794 CCS. How many VGMCs will be needed?
A. one
B. two
C. three
D. four
Answer: A

2. A customer wants to configure the Enterprise Media Gateways (EMG) on their CS 1000 Rls. 4.0 system for survivability. They also need to interpret the network requirements for the system. Which configuration ensures network survivability?
A. The survivable EMG TLAN IP address must be on the same TLAN subnet as the Call Server.
B. The survivable EMG ELAN IP address must be on the same ELAN subnet as the Call Server.
C. The survivable EMG ELAN IP address must be on a different ELAN subnet than the Call Server.
D. The survivable EMG must be separated from the Call Server by a Layer 3 device networked with the two Call Servers.
Answer: B

3. A customer is considering the deployment of the a H.323 Gatekeeper in failsafe mode for a CS 1000 Rls. 4.0 solution. Which statement most accurately describes why you would recommend this configuration?
A. Communication to the primary and secondary H.323 Gatekeepers will never be lost.
B. The Failsafe H.323 Gatekeeper within a gatekeeper zone takes over gatekeeper responsibilities for all of its peers within the zone.
C. If communication is lost with the primary H.323 Gatekeeper, the secondary gatekeeper will become the primary and run in failsafe mode.
D. If communication is lost to both gatekeepers, the H.323 Gateway running the failsafe gatekeeper services will continue to route calls in a best-effort fashion until communication is restored.
Answer: D

4. What is a the benefit of networking several CS 1000S Rls 4.0 system Call Servers together through LAN or WAN connections under the control of one Network Redirect Server (NRS)?
A. Double Virtual Trunk resources are used for intra-system, inter-Call Server calls.
B. IP Phones with a known community of interest can be registered on the same Call Server.
C. AMIS and VPIM networking of the voice messaging systems is more efficient using the NRS.
D. MCDN can be enabled providing Enterprise-wide feature transparency between the systems.
Answer: D

5. A company is planning the deployment of a new CS 1000 Rls. 4.0 system and requires ultra-high reliability. How would campus redundancy meet their needs?
A. It provides an optionally redundant Signaling Server.
B. It moves the Gatekeeper to a standalone Signaling Server.
C. It duplicates the entire processing core of a CS 1000E fault resilient system.
D. It provisions an Enterprise Media Gateway 1000E as a CS 1000E Call Server.
Answer: C