642-415 UCAD Real Exam Questions

The 642-415 UCAD Unified Communications Architecture and Design exam is the exam associated with the Cisco IP Telephony Design Specialist certification. This exam tests a candidate’s knowledge of technical issues surrounding the design of Voice over Data network and explains a methodology that brings order to approaching the problems faced by planners and designers, including assessment of the current network, Cisco methodology for implementing Voice over Data networks, and how to design sustainable and appropriate implementations. Candidates can prepare for this exam by taking the UCAD Cisco Unified Communications Architecture and Design course.

1: 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
Correct Answers: A

2: 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
Correct Answers: C

3: 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
Correct Answers: A D E

4: 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.
Correct Answers: A B E F

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.
Correct Answers: B D

6: Ajax needs to provide technical support outside of normal operating hours. They would like to deploy a small test call center to develop the skills necessary to provide phone, chat, and e-mail support. Ajax wants to start with five agents. Which two connection types would be applicable for use with the planned contact center? (Choose two.)
Correct Answers: A B

7: You have decided to use the MGCP signaling protocol for the PSTN gateway at Ajax. Which option is true regarding the use of a gatekeeper in their network?
A.One may be used for CAC.
B.One could be used for address resolution.
C.One may be deployed for both CAC and address resolution.
D.A gatekeeper is not applicable in this situation.
Correct Answers: D

8: Ajax has contacted its LEC to obtain an additional range of DIDs. Their current DID range is 555-6000 through 555-6999. The LEC can provide them with an additional range of numbers, 556-6000 through 556-6999. The LEC is currently sending four digits inbound, so the two DID ranges overlap. What two things can be done to resolve this solution? (Choose two.)
A.Ask the LEC to send five digits.
B.Change internal calls to five-digit dialing.
C.Move to a six-digit dial plan to provide more dialing granularity for all extension numbers.
D.Contact an alternative carrier to see if it can provide a DID range that does not overlap with the current range.
Correct Answers: A B

9: Currently, Ajax is considering implementing an IP contact center for the technical support group. As an interim step, calls to the technical support group need to be distributed in a round-robin fashion. Can this be accomplished?
A.Yes, with route groups.
B.Yes, by using call pick-up groups.
C.Yes, by implementing hunt groups.
D.Yes, by routing calls via an IVR unit.
E.No, Cisco Unified Contact Center is needed.
Correct Answers: C

10: The Ajax network coordinator is concerned that the IP phones can be targeted for malicious attack. When the security is designed for the IP telephony solution, which two methods can be used to help prevent malicious phone attacks? (Choose two.)
A.Ensure the PC port is disabled if a PC is not attached.
B.Isolate the IP phone VLANs from the PC data VLANs.
C.Ensure the IP phone firmware is validated with the Cisco Unified Communications Manager.
D.Ensure the Cisco Unified Communications Manager is configured to disable acceptance of GARP on IP phones.
Correct Answers: B D

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