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NETW 590 DeVry Entire Course Latest

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NETW 590 DeVry Entire Course Latest

NETW 590 DeVry Entire Course Latest

NETW590

 

NETW 590 DeVry Week 1 Discussion 1 Latest

PSTN Architecture (graded)

Discuss the architecture and technologies that make up the PSTN (Public Switched Telephone Network). How has it evolved over the years? What are the network elements that facilitate telecommunications?

NETW 590 DeVry Week 2 Discussion 2 Latest

Will VoIP Kill Traditional Telephony? (graded)

In 2005, VoIP was predicted to end traditional telephony. In 2011, the jury is still out? Research some articles that either support or dismiss this prediction. As with all TDAs, don’t just tell us yes or no, tell us why or why not.

NETW 590 DeVry Week 2 Discussion 1 Latest

Codecs (graded)

Research the topics of voice codecs. Why are there a number of G.7XX codecs? What are the differences and benefits?

NETW 590 DeVry Week 2 Discussion 2 Latest

VoIP Signaling Protocols (graded)

Discuss the similarities and differences between SIP and H.323. Why are there two major signaling protocols, and what does each emphasize? Which is more prevalent today?

NETW 590 DeVry Week 3 Discussion 1 Latest

Overlay Networks (graded)

Research the subject of overlay networks as used in the context of flexibility and performance. Why is it important and what are some of the applications that take advantage of overlay network characteristics?

NETW 590 DeVry Week 3 Discussion 2 Latest

VoIP Infrastructure Overlays (graded)

You are requested by your organization to improve the quality of the VoIP system. Discuss methods that can enhance VoIP quality. How do infrastructure overlays play a part?

NETW 590 DeVry Week 4 Discussion 1 Latest

Cellular vs. VoWLAN (graded)

In your view, how does VoWLAN compare with cellular telephony in terms of voice quality and coverage? How are the technologies similar? Different? Support your comments with data where possible.

NETW 590 DeVry Week 4 Discussion 2 Latest

Enterprise and Home Wireless (graded)

Search the Internet for three suppliers of wireless VoIP products and submit a link to at least one product of each supplier in the discussion forum. Does each use the same standards? Do they have the similar features? What differences are apparent?

NETW 590 DeVry Week 5 Discussion 1 Latest

VoIP Security and Privacy (graded)

VoIP has many of the same security and privacy issues as other Internet services, however there are also unique VoIP related issues to contend with too. Please discuss these generic and VoIP specific issues. What are the risks? How are these threats being addressed? What can you do as a manager?

NETW 590 DeVry Week 5 Discussion 2 Latest

VoIP Applications (graded)

Identify which applications are most suited to the adoption of VoIP. In addition to selecting those applications, tell us why they are appropriate choices for VoIP.

NETW 590 DeVry Week 6 Discussion 1 Latest

IP Multimedia Subsystem (graded)

What triggered the need for IMS? What kind of business impact will it have on the telecom industry, vendors, service providers, application developers, and others?

NETW 590 DeVry Week 6 Discussion 2 Latest

Converged Networks (graded)

How are legacy networks, both wireless and wireline, effected by VoIP? Is convergence the answer?

NETW 590 DeVry Week 7 Discussion 1 Latest

Strategic Advantage of VoIP (graded)

What are some of the strategic advantages the VoIP brings to businesses that adopt it? Will this advantage continue to exist within five to 10 years? Include citations from your research in your responses.

NETW 590 DeVry Week 7 Discussion 2 Latest

Direction of Network Design (graded)

Given all the buzz around “converged networks,” is there something in this discussion about converged networks that we are missing? How do you see network convergence in the next five years? Include citations from your research in your comments.

NETW 590 DeVry Week 1 Quiz Latest

Question 1. Question : (TCO A) In the context of the PSTN, routing _____.

  • is required for calls covering long distances and multiple switches
  • Both A and C
  • effectively creates a dedicated circuit
  • is an index or table

Question 2. Question : (TCO A) Time Division Multiplexing (TDM) _____.

  • is the means by which calls are carried on trunks
  • uses multiple frames
  • enables simultaneous calls on a single physical connection
  • All of the above

Question 3. Question : (TCO B) In a VoIP system, voice is _____.

  • digitized
  • analog
  • packetized
  • Both A and C

Question 4. Question : (TCO B) Address discovery refers to _____.

  • a reverse phone directory look-up
  • determining the destination of the call after initiation
  • recording the sending address after the call is terminated
  • the national phone number database

Question 5. Question : (TCO A) Briefly describe SS7 in terms of what it does, and its major characteristics.

Question 6. Question : (TCO B) What is the purpose of a VoIP gateway?

NETW 590 DeVry Week 2 Quiz Latest

Question 1. Question : (TCO B) Which of the following is NOT a category of speech coding?

  • Waveform codecs
  • Multirate codecs
  • Hyperthreaded codecs
  • Source coding

Question 2. Question : (TCO C) The Session Description Protocol (SDP) _____.

  • describes the parameters of a session
  • negotiates choice of codec used in a call
  • is used to handle both individual and conference calls
  • All of the above

Question 3. Question : (TCO G) The H.323 standard _____.

  • assumes QoS is not supported
  • forms part of the SIP INVITE message
  • is designed for all forms of media
  • Both A and C

Question 4. Question : (TCO G) The rationale behind RTP is _____.

  • to overcome the lack of reliability associated with UDP
  • to create a body for the Research of Telephone Protocols
  • to overcome the lack of latency handling associated with TCP
  • Both A and C

Question 5. Question : (TCO C) Briefly describe the major components of H.323.

Question 6. Question : (TCO G) Briefly describe the Media Gateway Control Protocol.

NETW 590 DeVry Week 3 Quiz Latest

Question 1. Question : (TCO D) The three distinct roles played by nodes in the Internet are _____.

  • the client, the proxy, and the subnet
  • the gateway, the router, and the client
  • the terminal, the gateway, and the gatekeeper
  • the client, the server, and the router

Question 2. Question : (TCO F) When implementing VoIP on a legacy TCP/IP network _____.

  • the required control mechanisms may be offloaded onto an overlay network
  • the packetized voice traffic may be offloaded onto an overlay network
  • no additional infrastructure-based control mechanisms are required
  • Both A and B

Question 3. Question : (TCO D) The fact that a service provider does not have an inherent ability to optimize its resources _____.

  • is a shortcoming of the Internet
  • is a key reason for the need for the anycast service
  • leads to the use of a CDN
  • All of the above

Question 4. Question : (TCO F) The R factor is a function of _____.

  • resources, retransmission, and rerouting
  • delay, network loss rate, jitter loss rate, and cluster factor
  • voice quality
  • packet replication capability

Question 5. Question : (TCO D) Briefly describe the two main types of overlay networks.

Question 6. Question : (TCO F) Briefly explain some of the main methods used to improve VoIP voice quality in an overlay network.

NETW 590 DeVry Week 4 Quiz Latest

1. Question : (TCO D) The three main types of IEEE 802.11 networks are _____.

  • the BUS, the Star, and the Mesh
  • the Hub, the Node, and the Link
  • Ad Hoc, Infrastructure, and Infrastructure Mesh
  • None of the above

Question 2. Question : (TCO E) The percent of power drain related to IEEE 802.11 wireless support in NIC cards is _____.

  • 25%
  • 30%
  • 10%
  • 50%

Question 3. Question : (TCO E) IEEE 802.11 uses a best-effort approach for scheduling packets. What techniques have been developed to improve VoWLAN performance?

  • Downlink prioritization
  • 802.11e uplink enhancement
  • EDCA
  • All of the above

Question 4. Question : (TCO F) VoIP wireless capacity is defined as _____. the maximum number of calls that can be processed at any given time the number of VoIP calls that can be made while still meeting the target voice quality (number of subscribers making calls)/(total number of subscribers) x 100 None of the above

Question 5. Question : (TCO D) Briefly describe the IEEE 802.11 medium access control (MAC).

Question 6. Question : (TCO F) Describe the physical layers used in IEEE 802.11.

NETW 590 DeVry Week 5 Quiz Latest

1. Question : (TCO D) The ENUM suite of protocols _____.

  • represents phone numbers as Internet addresses
  • brings together the E.164 and the DNS protocol
  • uses the Naming Authority Pointer
  • All of the above

Question 2. Question : (TCO D) The advantage of DID is that _____.

  • Dual Inverse Direction allows for two-way communication
  • shared external lines are multiplex among the internal lines on an on-demand basis
  • every internal phone line has a corresponding external line
  • All of the above

Question 3. Question : (TCO F) The categories of security risks found in voice communications are _____.

  • generic
  • VoIP related
  • SIP related
  • All of the above

Question 4. Question : (TCO F) The secure, real-time protocol (SRTP) is associated with _____.

  • signaling message encryption
  • message integrity
  • authentication
  • data encryption

Question 5. Question : (TCO D) Why does FAX not work well in practice in a VoIP network?

Question 6. Question : (TCO F) Why is the PSTN considered to be less of a security risk than a VoIP network?

NETW 590 DeVry Week 6 Quiz Latest

1. Question : (TCO D) The transport control layer in IMS includes the _____.

  • RACS
  • NASS
  • NAT and ENUM
  • Both A and B

Question 2. Question : (TCO E) The function in IMS responsible for IP address allocation is the _____.

  • AMF
  • CLS
  • NACF
  • Both A and C

Question 3. Question : (TCO E) The IMS UAAF authenticates users by means of _____.

  • the PSTN gateway registration
  • the profile database function
  • an encrypted password key sequence
  • None of the above

Question 4. Question : (TCO F) Some of the advantages to operators afforded by IMS include _____.

  • providing levels of QoS and charge for it
  • supporting users inside and outside the operator-specific network
  • allowing network operators to deliver services to mobile subscribers
  • All of the above

Question 5. Question : (TCO D) Briefly discuss what types of networks are addressed by the transport layer of IMS architecture.

Question 6. Question : (TCO F) Briefly describe some of the benefits of IMS to service providers.

NETW 590 DeVry Complete Course Project Latest

Week 2-3-4-7

Overview

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The greatest value in a course such as VoIP Telephony comes from applying the concepts, theories, applications, and devices explored throughout the class. This project gives you an opportunity to select a topic in which you are interested and apply concepts and applications from readings, exercises, current devices, and class discussions. The course project allows you to apply the tools from the course to assess a problem, diagnose its sources, and recommend a course of action. In developing the project, assume that your manager has requested a thorough analysis and a recommended course of action for a problem that could be resolved by a VoIP application. Some examples are a deployment plan for a VoIP solution, recommendation for specific VoIP solution, or a marketing plan for a VoIP application. Think of yourself as a consultant. Tackle a VoIP problem in a specific organization of interest to you.

The final project (due in Week 7)should be a minimum of 10 pages and should not exceed 15 pages in length. Be sure to include a cover page along with a reference page–these should not be included in the page count. The paper is to be double-spaced, 12 size font and have 1 inch margins. You may use one of the formats from the official style guides indicated in the Syllabus. Plan to use the Discussion Forum to post questions and solicit feedback.

Preparation and Grading

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This term paper gives you an opportunity to select a topic in which you are interested and apply concepts and applications from readings, exercises, current best practices, and class discussions. Write a term paper in which you introduce the issue, define the problem, search the literature, analyze the problem, offer possible solutions, propose a single solution, develop an implementation plan, and justify why/how your solution will solve the identified problem.

Your VoIP/IP Telephony project will be objectively evaluated based on the following criteria. To facilitate your Network Design Project’s creation, please utilize the following four (4) sections as subheadings. The “Writing Quality and Flow” is the last section (worth 30 points) on which you will be evaluated… as it relates to the other four sections.

Introduction

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Provide a complete description of the topic you selected, and identify the specific IP Telephony/VoIP issues. In this section, spend time defining and describing your project and present background/facts that will enable the reader to clearly understand the topic. Providing a thorough understanding and clear articulation of the project’s topic is critical to the successful development of the rest of your project.

The Introduction should help the reader envision the project and how you propose to accomplish it. A draft of your introduction is due at the end of Week 3.

Suggested length: 1-2 pages (keep it concise)

Problem Statement

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The project’s problem statement should be the driving force behind the project. It should include the purpose or specific result expected from the project and achieved through the project objectives and activities. It should include the criteria against which everything done on the project is measured. A good problem statement is specific, measurable, and realistic.

The problem statement should not change during the course of the project. Identify and clearly state the problem(s) and issues. If there appears to be more than one problem/issue, decide if they are separate or related issues. A draft of yourproblem statement is due at the end of Week 4.

Suggested length: 1-2 pages (keep it concise)

Analysis

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A significant section of the project is providing a detailed description of the causes of the problem/issue(s) that you have defined in the Problem Statement section. Be sure the causes you identify relate directly to the problem/issue. You must effectively apply course material. Integrate your findings from your review of the literature in your analysis. Discuss the concepts, ideas, or insights that are most valuable in helping you make sense of your project. This is not a course in applied commonsense, so support your analysis with appropriate research. This section should tie together the problem statement and project goals. Cite all sources.

This section and the implementation plan are the most important sections of your project. Start thinking this through as soon as you have defined your problem statement. It is important to spend significant time in working through this section of the plan.

Suggested length: 3-4 pages

Recommended Solution and Implementation

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Explore the solution(s) that could be appropriate to solve the identified problem/issue(s). Be sure the solution(s) is/are logical based on your analysis and that the solution(s) would effectively treat the problems, not the symptoms. Also, discuss the anticipated outcomes (both positive and negative) of implementing each of the possible solution(s) you identified. Describe exactly what should be done and how it should be done, including by whom, with whom, and in what sequence.

Your implementation plan should include any recommendations you may have for the manager, a high level timeline, and identify any risks. This section should also contain a fallback plan if the proposed implementation should fail.

This section should be developed in conjunction with the analysis section. This section will describe, in words, how the manager will implement your proposed solution.

Suggested length: 2-3 pages

References

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You must use no less than six (6) resources outside your textbook. Cite all sources. All references must be cited in two places: within the text and on a references list. Choose references judiciously and cite them accurately.

See the Syllabus/Plagiarism and Keller Graduate Citations for more information on APA if you have any questions about this important requirement.

Writing Quality and Flow

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This is a very important area. Your instructor will closely peruse your writing to evaluate its graduate-level content and correctness. In the business world, the ability to communicate is critical. Poorly written documents do not equate “A” level work.

Your project should be crisply written, well edited, and professional. You essentially have 10-15 pages to communicate a thoughtful approach that will result in a success.

Spelling, grammar, punctuation, and clarity of expression are important; writing should be logically organized, readable, and persuasive. Use of appropriate document structure to adequately cover the content outlined above and the selected topic is demonstrated. The plan is your finished “product” so take care to present your ideas and solution in a most professional manner.

The fully completed VoIP/IP Telephony Project includes a title page (include your name, date, title of your plan, name of the course), the Introduction and the content outlined above, plus any applicable tables, graphs, or attachments.Footnotes (or endnotes) and a Bibliography are required.

You must use no less than six (6) resources outside your textbook. Cite all sources. All references must be cited in two places: within the text and on a references list. Choose references judiciously and cite them accurately. Refer to the style guide manual to understand how to cite sources appropriately.

Grading Rubric

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Category Points Description
Topic Selection 10 The topic selection deliverable (due in Week 2) should be a minimum of two paragraphs. The first paragraph should explain why you chose the topic, what your approach will be, and what you hope to learn. The second paragraph should list some assumptions and requirements that you will use.

This deliverable should NOT become a part of the final project.

Introduction 25 A quality paper will include an introduction (due in Week 3)based upon a well formed thesis statement. The logical order of the content of the overall project will be derived from the thesis statement.
Problem Statement 25 A quality paper will clearly define the problem statement/issue(s) of the selected topic.

The Problem Statement is due in Week 4.

Analysis 60 A quality paper will have significant analysis and depth of research to support any statements. Relevant illustration or examples are encouraged. A quality paper will employ sound use of reasoning and logic to reinforce conclusions.
Recommended Solution and Implementation 40 A quality paper will identify and clearly state the proposed solutions and implementation plans to solve the identified problem/issue(s) and to support the analysis that was completed.
Writing Quality and Flow 30 A quality paper will be free of any spelling, punctuation, or grammatical errors. Sentences and paragraphs will be clear, concise, and factually correct.

A quality paper will include all applicable sections and a title page, proper citations, and a bibliography.

Total 190 A Quality Paper will meet or exceed all of the above requirements.

NETW 590 DeVry Final Exam Latest

Question 1. 1. (TCO A) Trunks are used to _____. (Points : 5)

  • create circuit branches
  • archive historical call information
  • carry simultaneous calls using TDM
  • connect local calls

Question 2. 2. (TCO A) The following are contributors to latency of a VoIP network, except _____. (Points : 5)

  • the physical limit imposed by the speed of light
  • it is cheaper and easy to deploy
  • queuing delay
  • transmission delay

Question 3. 3. (TCO B) In the traditional PSTN, voice traffic was _____. (Points : 5)

  • analog, at least for the last mile connection
  • digitized from the point of termination in the home
  • analog between trunked switches
  • switched via packets

Question 4. 4. (TCO B) Address discovery refers to _____. (Points : 5)

  • a reverse phone directory look-up
  • determining the destination of the call after initiation
  • recording the sending address after the call is terminated
  • the national phone number database

Question 5. 5. (TCO C) What is the core component of an H.323 network? (Points : 5)

  • Multipoint Control Unit
  • Gatekeeper
  • Terminal
  • Gateway

Question 6. 6. (TCO D) Some of the limitations of the Internet are related to all of the following, except _____. (Points : 5)

  • multicast
  • anycast
  • QoS
  • VoIP

Question 7. 7. (TCO D) An Ad Hoc network does not require _____. (Points : 5)

  • other stations
  • an antenna
  • security
  • an access point

Question 8. 8. (TCO E) The task of a network-layer handoff is _____. (Points : 5)

  • to probe in order to decide when to hand off, and to what AP
  • to ensure frames are correctly delivered when the AP has changed
  • to complete authentication
  • to complete association

Question 9. 9. (TCO E) The application layer of IMS _____. (Points : 5)

  • is known as the “IMS core”
  • is designed around servers for each application such as voice, video, and messaging
  • includes control functions for VoIP sessions
  • None of the above

Question 10. 10. (TCO F) Compared to VoIP, the PSTN is considered to be less of a security risk because _____. (Points : 5)

  • there are more IP addresses than phone numbers
  • the decline of dial-up Internet
  • of the specialized circuit-switched technology
  • None of the above

Question 11. 11. (TCO F) The secure, real-time protocol (SRTP) is associated with _____. (Points : 5)

  • signaling message encryption
  • message integrity
  • authentication
  • data encryption

Question 12. 12. (TCO G) The Real-Time Transport Protocol _____. (Points : 5)

  • uses ALF
  • does not allow extensions
  • guarantees timely delivery
  • does not time stamp packets

Page 2

Question 1. 1. (TCO A) Describe packet switching. What problems are inherent in sending voice over a packet switched network? (Points : 30)

Question 2. 2. (TCO B) If you were to conduct a network assessment to determine readiness for IP Telephony/VoIP, what aspects of the network would you evaluate, and why? (Points : 30)

Question 3. 3. (TCO C) Explain the role of codecs in VoIP. (Points : 30)

Question 4. 4. (TCO D) Are there alternatives to an overlay network? If so, please discuss them and provide examples. (Points : 30)

Page 3

Question 1. 1. (TCO E) Briefly explain the roles of the Network Attachment Subsystem in IMS. (Points : 30)

Question 2. 2. (TCO F) Why is the PSTN considered to be less of a security risk than a VoIP network? (Points : 30)

Question 3. 3. (TCO G) List and briefly explain the various speech coding techniques. (Points : 30)

Question 4. 4. (TCO H) Describe where you think IP telephony will be in three to five years. What is the next generation of VoIP? (Points : 30)

 

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