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Introduction about the exam
This exam cisco 642-437 exam aims at not only increasing what somebody already knows about networking especi9ally the VoIP related networks but it also add new knowledge and skills related to it hence increasing one knowledge base in networking this certification also aims at giving and imparting one with the skills needed in the troubleshooting of an IP network that is converged and also its implementation and operations without forgetting the problems faced in technological world with respect to networking . Deployment and configuration involved in the networks such as VoIP and the challenges faced
This Microsoft 642-437 exam gives one the hands on experience and skills needed for operation in the network field where there are many types of network such as VoIP and even where the networks are converged and this makes it possible for one to know their implementation, designing, configuration and how to maintain the successfully and also the challenges faced there and how to face them
Why this exam is required
This exam enables an individual to have advance knowledge skills required to integrate into underlying network architectures and with this certification a network professional is in a position to create collaboration solution that is transparent, scalable and manageable.
One also gains the knowledge and skills required to integrate gateways into an enterprise VoIP network and how to build and test a sophisticated IP telephony network that one can use as a template for real deployment
This exam is associated with CCNP Voice certification
Prerequisites for this exam
The prerequisites for this exams are among the following are:
Valid Cisco CCNA voice or CCNA video or any Cisco CCIE certification.
One should also prepare for this exam by taking the CVOICE v8.0 implementing Cisco unified communications voice over IP and QoS v8.0.
An individual preparing for this exam should at least know what is entailed and what the following is all about: basics of networking that includes the WANS and LANS, routers and switching of IPs. The individual should also have the knowledge required and used in configuration and operation of routers and switches used in cisco and also working knowledge in DHCP and VLANs.technologies and operations of PSTN in the traditional way knowledge and skills are also essential
What skills and knowledge are tested?
This exams aims at testing the candidates’ knowledge on how to implement and operate gateways, gatekeepers, Cisco unified border element, Cisco unified communications manager express and QoS in a voice network architecture.
The exam topics or objectives
Among the domains covered in this exam which are categorized into 8 domains each having different weighted percentage all of which makes the final total percentage in the exam ,each domain contain concepts which are closely related with each other and are equally important for this certification. The domains include among the following:
Describing a dialing plan 13%
This is the first domain of this exam where one is taught the basic of fundamentals regarding this exam certification, prior knowledge gained in the other related certifications is what helps one to efficiently understand the key concepts covered here in this first domain, among the knowledge and skills given to students in this domain then tested are describing a numbering plan, describing a digit manipulation, describing path selection, describing calling privileges among others.
Describing the basic operation and components involved in a VoIP call 16%
This domain closely relates with the first domain as a lot is borrowed from it and a student is expected to have had a good understanding and knowledge of the following key areas and concept of this domain at the end since they are the one tested and graded on, those key area are describing VoIP call flows, describing RTP,RTCP,Crtp and sRTP,describing H.323,describing MGCP,describing skinny call control protocol, describing SIP, identifying the appropriate gateway signaling protocol for any given scenario efficiently, choosing the appropriate and relevant codec for any given and stipulated scenario, describing and configuring VLANs appropriately
Implementing Cisco unified communications manager express to support endpoints using CLI 11%
Among what is covered,included,taught and tested in this domain and the other domains listed below are concepts which are as equally important as others and also contribute to the final grading of the student, the key concept covered in this remaining domains together with this are among the following:configuiration of proper caller ID,configuiring call admission control in the three known different ways, configuring and troubleshooting cisco’s new ISR routers and exploring their DSP configuration, configuring router/gateway equipment to connect to a public dialing plan network using different call protocols and procedures, configuring gateways to support calls using different call control protocol and signaling protocols, basic signaling protocols used of voice gateways
Describing the components of a gateway 9%
Implementation of a gateway 13%
Implementation of Cisco unified border element 9%
Describing the need to implement Quality of Service (QoS) 11%
Implementing a gateway 18%
With the changing world of technology that is networking included one with this certification is highly needed and relevant in any field dealing with technology hence this certification is essential to anybody with passion in the future and current world of technology networking being a part of it.