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Unified Communications Architecture and Design : 642-415 Exam

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
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Exam Description Introduction Exam Topics Recommended Training Additional Resources
Exam Description Introduction
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

Unified Communications Architecture and Design”, also known as 642-415 exam, is a Cisco certification. With the complete collection of questions and answers Q&as with Expert Explanations, Pass4sure has assembled to take you through 58 Q&As to your 642-415 Exam preparation. In the 642-415 exam resources, you will cover every field and category in IP Communications helping to ready you for your successful Cisco Certification.
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QUESTION 16
PassGuide .com has installed an FWSM in the data center. Which feature must be
configured to enable FTP to work?
A. Transparent mode
B. Deep packet inspection
C. Dynamic PAT
D. Access lists
E. Dynamic NAT
Answer: B
QUESTION 17
Which three are valid SPAN sources for the NAM? (Choose three.)
A. A VLAN
B. An EtherChannel
C. A line card
D. A port group
E. An MPLS tunnel
F. A port
Answer: A,B,F
QUESTION 18
PassGuide .com network is configured as follows:
NetFlow is on for all core switch interfaces
The NAM receives NDE packets from each switch
Reports show aggregate data for all interfaces
How would you view data for specific interfaces on a given switch?
Www.actualtest.org – The Power of Knowing
A. Enable NetFlow only on the interfaces that you want to view
B. Create a custom NDE data source in Cisco Traffic Analyzer and specify the interfaces
that you want to view
C. Create ACLs on the NAM data ports to filter the NDE traffic
D. Limit the NDE data capture by specifying the VLANs that apply to the interfaces that
you want to view
Answer: B
QUESTION 19
Which step will configure high availability on two IDSMs in in-line mode?
A. Install the IDSMs in separate chassis
B. Enable software bypass on the backup IDSM
C. Enable hardware bypass on the primary IDSM
D. Configure an EtherChannel between the two IDSMs
Answer: B
QUESTION 20
A switch is running RSTP and is connected to a switch running 802.1D. What happens
when a spanning-tree reconvergence is triggered?
A. Both switches revert to STP mode
B. The switch running 802.1D reverts to RSTP mode
C. The switch running RSTP reverts to 802.1D mode
D. The switches can’t converge
Answer: C