DeVry NETW 590 Full Course Latest

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DeVry NETW 590 Full Course Latest

 

DeVry NETW 590 Week 1 Discussion 1 & 2 Latest

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WEEK 1: PSTN ARCHITECTURE

2020 unread replies.3737 replies.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?

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WEEK 1: WILL VOIP KILL TRADITIONAL TELEPHONY?

1818 unread replies.3434 replies.

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.

 

DeVry NETW 590 Week 2 Discussion 1 & 2 Latest

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WEEK 2: CODECS

1818 unread replies.3535 replies.

Research the topics of voice codecs. Why are there a number of G.7XX codecs? What are the differences and benefits?
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WEEK 2: VOIP SIGNALING PROTOCOLS

2727 unread replies.3737 replies.

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?

 

DeVry NETW 590 Week 3 Discussion 1 & 2 Latest

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WEEK 3: OVERLAY NETWORKS

1919 unread replies.3737 replies.
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?dq 2

WEEK 3: VOIP INFRASTRUCTURE OVERLAYS

1616 unread replies.3434 replies.
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?

 

DeVry NETW 590 Week 4 Discussion 1 & 2 Latest

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WEEK 4: CELLULAR VS. VOWLAN

1515 unread replies.3434 replies.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.

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WEEK 4: ENTERPRISE AND HOME WIRELESS

2020 unread replies.3737 replies.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?

 

DeVry NETW 590 Week 5 Discussion 1 & 2 Latest

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WEEK 5: VOIP SECURITY AND PRIVACY

1717 unread replies.3535 replies.

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?

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WEEK 5: VOIP APPLICATIONS

77 unread replies.3535 replies.

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.

 

DeVry NETW 590 Week 6 Discussion 1 & 2 Latest

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WEEK 6: IP MULTIMEDIA SUBSYSTEM

1515 unread replies.3535 replies.

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?

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WEEK 6: CONVERGED NETWORKS

1818 unread replies.3636 replies.

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

 

DeVry NETW 590 Week 7 Discussion 1 & 2 Latest

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WEEK 7: STRATEGIC ADVANTAGE OF VOIP

1919 unread replies.3535 replies.

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.

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WEEK 7: DIRECTION OF NETWORK DESIGN

1919 unread replies.3333 replies.

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.

 

DeVry NETW 590 All Course Projects Latest

OVERVIEW

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.

COURSE PROJECT PREPARATION AND GRADING

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

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

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 your problem statement is due at the end of Week 4.

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

ANALYSIS

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

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

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

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.

 

DeVry NETW 590 Week 1 Quiz Latest

Question 1

5 / 5 pts

(TCO A) A telephone switch _____.

reduces the number of dedicated lines between telephone subscribers

utilizes the concept of multiplexing

is capable of handling hundreds of calls simultaneously

All of the above

Question 2

0 / 5 pts

(TCO A) The PSTN uses a connection hierarchy that _____.

routes calls using a numbering scheme and signaling protocol

uses SS7, an important in-band signaling system

assumes all switches are directly connected to all other switches

is physically switched, rather than protocol-based

Question 3

5 / 5 pts

(TCO B) In the traditional PSTN, voice traffic was _____.

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

0 / 5 pts

(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

15 / 15 pts

(TCO A) What are trunks used for in the traditional PSTN?

Question 6

15 / 15 pts

(TCO B) What is the purpose of a VoIP gateway?

 

DeVry NETW 590 Week 2 Quiz Latest

Question 1

(TCO B) Which of the following is NOT a category of speech coding?

Waveform codecs

Multirate codecs

Hyperthreaded codecs

Source coding

Question 2

(TCO C) The three main components of SIP include _____.

the UA, the SIP Registrar, and the SIP Proxy Server

the gateway, the CLI, and the media decoder

the SDP, the Media Transport Protocol, and the Routing Table

the SIP, the SDP, and the TLA

Question 3

(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

(TCO G) The Media Gateway Control Protocol (MGCP) _____.

unlike the name, does not actually control protocols

includes the MGC and the MG

is a component of the SIP protocol

is an end-to-end protocol

Question 5

(TCO C) What are some of the differences between SIP and H.323?

Question 6

(TCO G) Briefly describe the SDP (Session Description Protocol), and explain what it is used for.

 

DeVry NETW 590 Week 3 Quiz Latest

Question 1

(TCO D) The two major types of overlay networks include _____.

virtual and physical

secure and public

infrastructure and P2P

private and interstitial

Question 2

(TCO F) Common methods used by the overlay network to maintain a quality voice call include?

Path switching

Packet buffering

Packet replication

All of the above

Question 3

(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

(TCO F) Bandwidth loss associated with multiple packet copying and retransmission _____.

may be mitigated by erasure or parity coding

is the primary cost of having an overlay network

requires that the network be overbuilt by 20% or more

None of the above

Question 5

(TCO D) Briefly describe the purpose and rationale behind a CDN.

Question 6

(TCO F) Briefly explain the rationale behind coding, and list some of the primary codes in use.

 

DeVry NETW 590 Week 4 Quiz Latest

Question 1

(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

(TCO E) Which is NOT a performance problem typically associated with VoWLAN?

RJ-45 connectivity

Channel access delay

External interference

Disruption in connectivity

Question 3

(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

(TCO F) The physical layer of 802.11 protocols uses _____.

spread spectrum

OFDM

MIMO

All of the above

Question 5

15 / 15 pts

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

Question 6

(TCO F) How is wireless capacity defined and what are some of the constraints governing wireless capacity?

 

DeVry NETW 590 Week 5 Quiz Latest

Question 1

5 / 5 pts

(TCO D) The PSTN phone number and IP address _____.

are associated with each other in a database

are usually stored together in a gateway

may need a dynamic mapping scheme in the case of DHCP

All of the above

Question 2

5 / 5 pts

(TCO D) 911 emergency calls in a wireless network _____.

are located by the radio tracking functionality operated by the service provider

are not allowed

estimate location using the Global Positioning System (GPS)

Both A and C

Question 3

(TCO F) Which of the following is not considered a generic security issue found in VoIP?

Spamming

Malware

Misrepresentation

Denial of service (DOS)

Question 4

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

signaling message encryption

message integrity

authentication

data encryption

Question 5

(TCO D) Briefly describe the ENUM suite of protocols.

Question 6

(TCO F) Describe the specific VoIP-related security issues.

 

DeVry NETW 590 Week 6 Quiz Latest

Question 1

5 / 5 pts

(TCO D) The IMS transport layer may include _____.

cellular telephony protocols

WLAN

PSTN

All of the above

Question 2

5 / 5 pts

(TCO E) The application layer of IMS _____.

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 3

5 / 5 pts

(TCO E) The Service-Based Policy Decision Function _____.

interfaces the RACS with higher layers

provides a single point of contact for the high-level application

performs policy-based decisions for service-level requests

All of the above

Question 4

5 / 5 pts

(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

0 / 15 pts

(TCO D) Briefly explain the roles of the Network Attachment Subsystem.

1) Dynamic provisioning of IP addresses

2) User authentication

3) Authorization of network access, based on user profile

4) Access network configuration, based on user profile

5) Location management

Question 6

15 / 15 pts

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

 

 

DeVry NETW 590 Final Exam Latest

Question 1 5 pts

(TCO A) SS7 _____.

sets up and terminates calls

is prone to tampering because of its in-band arrangement

is the seventh special software upgrade to the national phone system

uses the same path that is used for voice traffic

Flag this Question

Question 2 5 pts

(TCO A) Copper lines from a residence to a CO are used to _____.

Create circuit branches

archive historical call information

carry simultaneous calls using TDM

connect local calls

Flag this Question

Question 3 5 pts

(TCO B) Which of the following is NOT a category of speech coding?

Waveform codecs

Multirate codecs

Hyperthreaded codecs

Source coding

Flag this Question

Question 4 5 pts

(TCO B) In the PSTN system, voice is _____.

digitized via a codec, but not packetized (A)

analog only (B)

packetized (C)

Both A and C

Flag this Question

Question 5 5 pts

(TCO C) The three main components of SIP include all of the following, except _____.

the UA

the SIP Registrar

the SDP

the SIP Proxy Server

Flag this Question

Question 6 5 pts

(TCO D) A CDN _____.

is responsible for generating and delivering content (A)

uses only MPLS/ATM (B)

handles load balancing and latency minimization (C)

Both A and C

Flag this Question

Question 7 5 pts

(TCO D) The two major functions often offloaded onto an overlay network include _____.

virtual and physical

control and data plane

secure and public

private and interstitial

Flag this Question

Question 8 5 pts

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

similar to the power drain associated with a wired network

approximately twice the amount incurred by a wired network

10% or less

30%

Flag this Question

Question 9 5 pts

(TCO E) The IEEE Medium Access Control _____.

defines the method for accessing a shared wireless channel

allows multiple stations to transmit without interfering with each other

is referred to as a DCF

All of the above

Flag this Question

Question 10 5 pts

(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

Flag this Question

Question 11 5 pts

(TCO F) The IMS architecture was extended by _____.

3GPP

ETSI

TISPAN

EITF

Flag this Question

Question 12 5 pts

(TCO G) SIP and the H.323 standard _____.

are two ways of saying the same thing

are both IETF standards

are both simple protocols focused only on establishing sessions

None of the above

Question 13 30 pts

(TCO A) What are the architectural differences between the Internet and the PSTN?

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Question 14 30 pts

(TCO B) What is the purpose of a codec? What is the advantage/disadvantage of using a G.711 vs. G.726 for encoding voice?

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Question 15 30 pts

(TCO C) What is the purpose of the Media Gateway Control protocol?

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Question 16 30 pts

(TCO D) Your company has a large data network and is currently using a phone service from a local phone company for telecommunications. Would you recommend switching to an IP PBX? Why or why not?

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Question 17 30 pts

(TCO E) What are some of the reasons cable companies are interested in VoIP?

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Question 18 30 pts

(TCO F) What are the strategic advantages for an ISP to offer VoIP services? What investments would be needed to get into this new business?

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Question 19 30 pts

(TCO G) What is the difference between a hybrid IP Telephony/VoIP architecture and pure IP Telephony/VoIP architecture?

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Question 20 30 pts

(TCO H) What are the three domains of the 3G mobile system network? How does IMS differ from the packet-switched domain?

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DeVry NETW 590 Full Course Latest