642-415 Exam

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Exam : Cisco 642-415
Title : Unified Communications Architecture and Design


1. What information is relevant to choosing an IP telephony centralized call processing model?
A. multiple PRIs to the PSTN
B. a campus of six buildings connected via an ATM backbone
C. three small regional sales offices located in the three Western time zones
D. centralized order processing, shipping, and billing for all customer products
E. connectivity to a single service provider that hosts the company web site and provides for Internet access
F. a single six-story building with an IDF on each floor and an MDF in the computer room on the second floor
Answer: C

2. In a TDM PBX to Cisco Unified Communications Manager migration, which three things must be verified from the LAN perspective before IP telephony can be deployed? (Choose three.)
A. the type of wiring in the office
B. the number of PSTN connections needed
C. the number of public IP addresses available
D. the amount of rack space in the equipment rack
E. the amount of power that is available to support new LAN switches
Answer: ADE

3. Ajax wants to ensure that their employees are safe and that they comply with the law. What are four general E911 responsibilities of an enterprise telephony system? (Choose four.)
A. Enable PSAP call-back.
B. Initiate the update of ALI records.
C. Provide a detailed map of all ERLs.
D. Allow conferencing with internal security personnel.
E. Route calls to the appropriate point (on-net or off-net).
F. Deliver appropriate calling party number digits to LEC.
Answer: ABEF

4. Consider the following customer attributes and choose the correct IP telephony call processing model:
- a large campus that spans two PSAP areas
- a single group of buildings connected via fiber optics
- data VPNs that support multiple contractors and suppliers
- a fully developed three-tier network hierarchy
- connectivity to two different service providers for Internet access
A. single-site call processing
B. centralized call processing
C. hybrid call processing
D. distributed call processing
Answer: A

5. What are two conferencing guidelines for a single-site deployment? (Choose two.)
A. Use hardware conferencing only for small deployments
B. If available, configure DSPs for flex-mode when there are multiple codec types in use.
C. Group any conferencing resources into MRGLs based on their location, to manage Call Admission Control.
D. Make certain that Meet-Me and Ad-Hoc conference resources each account for a minimum of 5% of the user base.
Answer: BD

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