74-335 Certification Network Analysis In The IT Sector

Applicants for this 74-335 Study Kits are experts with the information networking familiarity, and who participate in the design, planning and deployment of the Lync unified communications resolution. Applicant must have rigid familiarity of information networking and a business; they should be capable of translating company needs into networking and technical necessity for UC resolution. Applicants must be knowledgeable with network readiness assessment methodology and co-related means like Lync bandwidth calculator.

Skills Measured of the Candidate During this Exam:

The 74-335 Examination deals with the ability of the person in the different technical tasks that are listed below for the exam of Lync Network Readiness Assessment.

Execute Lync Network readiness assessment methodology

• Recognize methodology stages: Recognize entry and exit criteria, order the stages, modeling, discovery, recommendation and simulation.
• Describe period and scope of methodology stages: Number of client's sites checked, client's geographical profiles, internal customer's requirements and customer's processes.
• Recognize deliverables: Final report, final presentation and bandwidth calculator.
• Get ready for traffic simulation: Gather potential blockers for simulation and determine appropriate timing of simulations, assess technical necessities of synthetic transaction tools.

Analyze the network surrounding

• Evaluate WAN topology: Virtual private network (VPN), asymmetric links, multiple MPLS providers, TCP versus UDP, MPLS, point-to-point wireless and signaling versus media traffic.
• Evaluate Wi-Fi infrastructure: Controller placement, access point roaming, channel overlap and rogue AP.
• Evaluate QoS approaches: Traffic shaping and traffic policing impact on DSCP, RTC and port based, separate/converged networks and scavenger class and best effort traffic class.
• Evaluate media flow scenarios: Peer-to-peer, conference, PSTN and capture traces.
• Evaluate the network for best possible performance: Average jitter, max jitter, peak consecutive packer loss, one-way network delay and average packet loss.
• Manage and monitor networks: Monitoring tools, interpreting SNMP traps, evaluating network availability, managing policy enforcement and utilization.

Execute usage modeling

• Model RTC traffic media flows: Conferencing, peer-to-peer and PSTN.
• Model Lync traffic per location: Compare how different personas impact network needs and standardize usage models on business needs and client usage depending on audio conferencing, PSTN and web conferencing, predict service growth and needs.
• Calibrate traffic volume by use of the Lync bandwidth calculator: PSTN, peer-to-peer, conferencing, central site traffic, branch traffic and remote user traffic.
• Examine how forecasted traffic impacts a network: Change business necessities, change network mechanism and limit traffic volume or adjust resolution design.

Examine customer information and measurements

• Examine policies collected from the discovery stage: Examine impact of security policies that includes firewalls, VPN tunnels, remote access, direct access and private VLANs, existing service level agreements on network infrastructure and assess appropriateness of existing QoS policies for Lync.
• Examine historical information network usage: Peak usage, average drop and peak packet loss.
• Design simulation traffic: Plan synthetic transaction path, plan synthetic transaction endpoint location/placement and plan synthetic transaction volume per path.
• Examine outcome from traffic simulation: Understand baseline network uniqueness and any dissimilarity that also include examining simulation outcomes in the context of a network.
• Formulate recommendation: Recommend modifications for QoS approach recommend network reconfigurations and explain impact of observed network impairments.

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