Free 642-415 download :cisco Unified Communications Advanced Unified Communications AM exam
Certification Provider: cisco
Exam Name: LCSE Cisco Lifecycle Services Express
Related Certifications: Unified Communications
Language: English
Latest update:2010-05-01
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642-415 QUESTIONS ANSWERS WITH EXPLANATIONS
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642-415 UCAD
Unified Communications Architecture and Design Exam
Exam Number: 642-415
Associated Certifications: Cisco IP Telephony Design Specialist
Duration: 90 minutes (35 -45 questions)
Available Languages: English and Japanese
Click Here to Register: Pearson VUE
Exam Policies: Read current policies and requirements
Exam Tutorial: Review type of exam questions
Exam Description Exam Topics Recommended Training Additional Resources
Exam Description
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.
Exam Topics
The following topics are general guidelines for the content likely to be included on the Remote Access exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.
Determine the relevant critical business and technical needs in order to develop a Cisco Unified Communications design framework
Determine which business considerations are relevant to a Call Control design
Determine which technical considerations are relevant to a Call Control design
Determine the appropriate deployment model to meet Cisco Unified Communications design requirements
Recognize the characteristics and limitations of a single-site Call Control deployment
Recognize the characteristics and limitations of a multi-site centralized processing Call Control deployment
Recognize the characteristics and limitations of a multi-site distributed / hybrid processing Call Control deployment
Recognize the characteristics and limitations of distributed cluster Call Control deployment
Design a Cisco Unified Communications Manager cluster
Determine Cisco Communications Manager redundancy model to meet design requirements
Determine cluster services necessary to meet requirements for a given Cisco Unified Communications Manager cluster, including TFTP, MoH, CTI Manager, and Voice Media streaming application
Determine hardware requirements for a given Cisco Unified Communications Manager cluster
Determine when an LDAP integration is required
Design the dial plan to support Cisco Unified Communications requirements
Explain the benefits of hierarchical and scalable numbering plans
Explain the issues surrounding Directory Number (DN) design
Explain the different path selection mechanisms available
Explain the different digit manipulations available
Explain the mechanisms used to enable calling privileges
Explain the mechanisms used to provide call coverage
Given a set of design requirements, design a dial plan
Identify the requirements for provisioning emergency services in an IP telephony environment
Design a LAN topology to support voice and data on a converged Cisco Unified Communications network
Design a highly available LAN infrastructure, capable of supporting voice and basic data requirements
Identify PoE considerations that impact hardware selection
Describe how DHCP, DNS, and NTP services impact LAN topology design
Select appropriate hardware to meet LAN design requirements
Design a WAN topology to support voice on a converged Cisco Unified Communications network
Determine voice bandwidth requirements for a given Busy Hour Call Attempts
Identify hardware and software requirements for remote survivability in a centralized deployment
Select appropriate hardware to meet WAN design requirements
Describe the interrelationship between WAN topology and voice services
Design connectivity for off cluster destinations
Determine how offnet connectivity issues influence gateway hardware and protocol selection
Select appropriate hardware to meet offnet design requirements
Determine circuit size based on a given set of calling patterns
Determine type of circuit to meet business and technical requirements
Given a set of business and technical requirements, design PSTN connectivity
Given a set of business and technical requirements, design integration to Legacy Infrastructure components
Given a set of business and technical requirements, determine the type of VoIP trunks needed
Design VoIP network to incorporate gatekeeper services
Identify capabilities and services provided by a gatekeeper
Given a set of business and technical requirements, design a VoIP network to incorporate a gatekeeper for CAC
Given a set of business and technical requirements, design a VoIP network to incorporate a gatekeeper for dial plan resolution
Identify the design requirements that impact the hardware selection for a gatekeeper
Design a QoS policy for a converged network
Describe the purpose of a QoS policy
Given business and technical requirements, develop a QoS policy
Given business and technical requirements, select the appropriate CAC mechanisms
Given business and technical requirements, define the parameters required to support a given CAC mechanism
Design media resources needed to support VoIP design requirements
Given business and technical requirements, design conferencing support
Given business and technical requirements, design transcoding support
Given business and technical requirements, design MTP support
Given business and technical requirements, determine the number of DSPs required
Given business and technical requirements, determine MoH support
Given business and technical requirements, determine media resource allocation
Determine environmental requirements of a Cisco Unified Communications design
Determine physical space requirements for specified hardware
Determine power requirements for specified design
Determine HVAC requirements for specified design
Identify the security concerns relevant to a Cisco Unified Communications design
Determine if an existing customer security plan will influence Cisco Unified Communications design
Identify the potential threats to an IP telephony network
Describe voice security features and their impact
Given business policies and technical considerations, design a security policy for a Cisco Unified Communications solution
CISCO 642-415
Cisco® Unified Communications Architecture and Design
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Question：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
Answer: A
Question：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
Answer: C
Question：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
Answer: ADE
Question：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.
Answer: ABEF
Question：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
Question：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.)
A.PRI
B. CAS
C. E&M
D. QSIG
E. POTS
Answer: AB
Question：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.
Answer: D
Question：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.
Answer: AB
Question：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.
Answer: C
Question：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.
Answer: BD