NTC 249 Entire Course Wide Area Networking Concepts

Discussion Question 1
Write a 250- to 300-word short-answer response to the following:
·  What are two WANs that you have used? What equipment or devices were used? Describe the network design and configuration? Respond to your classmates, and discuss how your examples differ.

Discussion Question 2
Write a 250- to 300-word short-answer response to the following:
·  Chou (2009) discusses a very common situation in business, communications between branch offices, and the home office data center. The author presents two methodologies to improve throughput between the offices and the data center: data compression and caching. Analyze and discuss the common types of data used in your company to test the suitability of these methods. Additionally, discuss where, in general, data compression can be used and where data compression cannot be used.
Discussion Question 3
Write a 250- to 300-word short-answer response to the following:
·  Soares, et al. (2008) review all the present protocol segments necessary for VoIP telephony. Protocol such as Session Initiation Protocol (SIP) and H.323 are prevalent but have limitations. Analyze and discuss the limitations of SIP and H.323 as presently used and include in your discussion effects of the proposed Advanced Multimedia System (AMS) protocol and whether it will fix the existing problems.
Discussion Question 1
Write a 250- to 300-word short-answer response to the following:
·  What are the advantages and disadvantages of VoIP? What VoIP services exist? What equipment may be necessary in a small office/home office (SOHO) and large enterprise environment?
Discussion Question 2
Write a 250- to 300-word short-answer response to the following:
·  The Internet does not guarantee delivery. Multimedia services such as Internet Protocol television (IPTV) require levels of quality of service (QoS) for acceptable performance. Doverspike et al. (2009) have created a set of internal protocols that help create a QOS scenario to allow IPTV signals to be delivered in an acceptable fashion. Pick any two of the author’s techniques and show how they contribute to the creation of a data stream with QOS.
Discussion Question 3
Write a 250- to 300-word short-answer response to the following:
·  Based on the Khan and Tahboub (2009) article, analyze and discuss the advantages and disadvantage of the MPLS protocol and what services are most likely to use that protocol in the network.
Learning Team Instructions
Network Design for Acme Manufacturing Network Draft
Draft a logical network drawing for Acme to depict the recommended WAN. Include the recommendations for the type of leased lines the company should choose at each location.
Draft recommendations on the type of telecommunications systems that would work best for Acme: private branch exchange (PBX) or VoIP.
Individual
OSI Model Paper
Write a 3-4 page paper (400 words per page) describing the open systems interconnection (OSI) model and how it relates to a network. Your response should include answers to the following:
·  On which layers of the OSI model do WAN protocols operate?
·  What are some of these protocols?
·  On which OSI layers do switches and routers operate?
·  If routers reside at more than one layer, what is the difference between the OSI layers?
Discussion Question 1
Write a 250- to 300-word short-answer response to the following:
·  Conduct an Internet search to locate an example of a private network and a public network. How is each network used? What are the pros and cons of each?
Discussion Question 2
Write a 250- to 300-word short-answer response to the following:
·Explain sub-netting in a way a nontechnical client would understand. Add clarification to other student explanations.
Discussion Question 3
Find a web site, an article on a web site or a peer reviewed article that is related to this weeks material.  Write a 250-300 word synopsis what you have found and explain why you think it is relevant.  Make sure you include the references and links to the article or web site.
Learning Team Instructions
Network Design for Acme Manufacturing Address Draft
Draft the IP address scheme, including the range of IP addresses, broadcast addresses, and subnets.
Draft a VLAN to appropriately address Acme’s concerns that departments that are not grouped together are logically connected.
Monday
Individual
Short Answers
Provide answers to each of the following questions:
Identify the functions of a CSU/DSU. How are they used in a corporate environment? Integrated services digital networks (ISDN) are sometimes used in locations that do not support DSL or cable modem connections. Your choices may be analog modems or an ISDN connection in those remote locations. Describe three benefits ISDNs have over regular dial-up modem connections. Compare and contrast packet and circuit switching. Which is more commonly used? What are the advantages and disadvantages of each? Describe the three main types of firewalls. Explain how each type protects the network. Determine which firewall is the most efficient and why.
Your answers should be 3-4 pages long in total (400 words per page).
Discussion Question 1
Write a 250- to 300-word short-answer response to the following:
·  What are some of the greatest security risks to a WAN? Provide an example of one risk and discuss the potential consequences and possible precautions.
Discussion Question 2
Write a 250- to 300-word short-answer response to the following:
·  Network attacks come in many forms. Broadley, et al. (2009) point out a new method where the attacker creates a covert communication channel by changing the timing of part of a real signal and sneaking in. Analyze and discuss whether your system at work could be attacked by this methodology and if you think so what are you going to do about it?
Discussion Question 3
Find a web site, an article on a web site or a peer reviewed article that is related to this weeks material.  Write a 250-300 word synopsis what you have found and explain why you think it is relevant.  Make sure you include the references and links to the article or web site.
Learning Team Instructions
Network Design for Acme Manufacturing Equipment Draft
Draft recommendations on network equipment that should be placed at each location. Also consider equipment based on the teleconferencing needs.
Draft a recommendation on how to secure the network. Make appropriate recommendations for wireless at Acme.
Monday
Individual
VLAN Paper
Consider the following scenario:
Your Company moves into a new building. Marketing is on the first floor, engineering is on the second floor, operations are on the third floor, and the call center is on the fourth floor. The LAN is organized neatly, with each floor having its own switch. Some of the groups on the floor are connected through hubs and the network is planned for orderly growth. The company grows faster and much differently than was planned, however, and the call center must be expanded. Some of the engineering department employees on the second floor and operations employees on the fourth floor move offsite, and the call center expands. Space is compressed and users move to other parts of the building, but their communities of interest do not change. The same users still need to communicate with the same services.
Write a 3-4 page plan (400 words per page) explaining how a VLAN could be implemented so that bandwidth is not consumed. Your plan must ensure that the network is not flooded with packets, and that members of the same VLAN can be located in different buildings or cities. Include the following:
·  The benefit of creating a VLAN.
·  A plan to segment the network into different broadcast domains to avoid bandwidth consumption.
·  A plan to improve security.
·  The type of VLAN membership and the value of that choice over other options.
·  The type of switch to be used, layer 2 or layer 3, and why you would choose it over the other.
·  The types of trunking configured on the switch.
·  The purpose and benefit of using the VLAN trunk protocol (VTP).
·  A definition of the VTP mode used to configure the switches.
·  Backup plan.
Your answers should be 4-5 pages long (400 words per page).
Discussion Question 1
Write a 250- to 300-word short-answer response to the following:
·  How can wireless interface with a WAN? Discuss security concerns with wireless and best practices to protect a wireless system?
Discussion Question 2
Write a 250- to 300-word short-answer response to the following:
·  Worldwide Interoperability for Microwave Access (WiMAX) is a very popular topic today since it offers the possibility of wireless broadband signal capability over large geographic areas. WLAN signals suffer from a number of potential degradations such as multipath and fading. Balakrishnan, et al. (2009) analyzes the WiMAX technology in these conditions. An interesting side note to recognize is that this analysis was done via computer simulation using software called OPNET. Analyze and discuss the potential for the use of WiMAX in your corporate environment. Do you see WiMAX becoming the predominant WAN wireless technology of the future? If so, why? If not, why?
Discussion Question 3
Write a 250- to 300-word short-answer response to the following:
·  Li, et al. (2009) have provided a brief review of early network structures and are also providing their view of the future generations of wireless networking out to the 7th generation. Analyze and discuss you personal view of either agreement or disagreement with the authors. In either case present support or alternatives.
Learning Team
Network Design for Acme Manufacturing
As a Learning Team, finalize the network design for Acme Manufacturing.
The final presentation should be 10-12 pages (400 words per page) plus any diagrams or charts needed to explain the design.
Submit to instructor.


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