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
Recommended Training
Cisco Unified Communications Architecture and Design (UCAD) is the recommended training for this course
Courses listed are offered by Cisco Learning Partners—the only authorized source for Cisco IT training delivered exclusively by Certified Cisco Instructors. Check the Global Learning Partner Locator for a Cisco Learning Partner near you.
Additional Resources
A variety of Cisco Press Self-Study titles are available for this exam. These titles can be purchased at the Cisco Marketplace, directly from Cisco Press, or wherever you purchase technical books.
