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About 74-335, Lync Network Readiness Assessment Exam
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IT professionals are the main targeted audience for this exam. These individuals are expert in their knowledge and skills with data networking and should be able to translate business needs into technical and networking requirements. They should also know how to plan, design and deployment of the Lync Unified Communication solution in the organization. The knowledge of Network Readiness Assessment methodology and related tools.
Implement Lync Network Readiness Assessment Methodology
Identify methodology phases: order phases, identify entry and exit standards, Discovery, Modeling, Simulation, and Recommendation.
Define duration and scope of methodology phases: geographical profile of the customer, how many customers sites are tested, internal customers processes and requirements.
Identify deliverables: includes bandwidth calculator, final presentation, and final report.
Prepare for traffic simulation: how to access technical requirements of synthetic transaction tools, determine the timing of simulations, and gather blockers for simulation.
Analyze the Network Environment
Review WAN topology: includes MPLS, VPN,MPLS providers, point-to-point wireless, and signaling vs. media traffic.
Review Wi-Fi infrastructure: access point roaming, controller placement, and channel overlap.
Review QoS approaches: traffic policing and traffic shaping impact on RTC, DSCP, and separate/converged networks.
Analyze media flow scenarios: conference, peer-to-peer, PSTN, and capture traces.
Analyze the network for optimal performance: max and average jitter, peak consecutive and average packet loss and one way network delay.
Monitor and manage networks: includes utilization, managing policy enforcement, monitoring tools and evaluating network availability.
Perform Usage Modeling.
Model RTC traffic media flows: includes peer-to peer, conferencing, and PSTN.
Model Lync traffic per location: predict service needs and growth, calibrate usage models based on customer usage and business requirements.
Calculate traffic volume by using the Lync bandwidth calculator: peer-to-peer, conferencing, branch traffic, central site traffic, and remote user traffic.
Analyze how predicted traffic impacts a network: how to adjust business requirements, network components and limit traffic volume or change solution design.
Analyze Customer Data and Measurements
Examine policies collected from the discovery phase: it has Service Level Agreementson network infrastructure, analyzing the impact of security policies.
Examine data network usage: average and peak usage, average drop, and peak packet loss.
Plan simulation traffic: design synthetic transaction endpoint placement/location, transaction path and volume per path.
Examine results from traffic simulation: interpret baseline network characteristics.
Formulate recommendations: recommend network reconfigurations and modifications for QoS approach.
Candidates can prepare for the examination Lync Network Readiness Assessment by enrolling in the following course:
20335A: Lync Network Readiness Assessment is a 3 days course.
The 74-335 exam was published in September 2013 and targets IT professionals. The exam is offered in English language. Candidates can register for an exam at the Prometric website.
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