MIS 589 Complete Discussions Week 1
to 7
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MIS 589 Week 1: Introduction and the
Application Layer – Discussion
Technology and Evolution (Graded)
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As you will discover this week
through your studies, communications have gone through some major changes
throughout history. Explain how information systems from the 1980s differ
from information systems today. What networking and communications changes
were introduced in the past decade (2000s), and what were their implications?
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MIS 589 Week 1: Introduction and the
Application Layer – Discussion
The Application Layer (Graded)
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The textbook and lecture explain
that there are four fundamental application architectures in use today:
host-based architectures, client-based architectures, client-server
architectures, and peer-to-peer architectures. Do some research in the DeVry
Virtual Library (Under Course Home in the Student Resources section). Based
on your research, what application architectures are most prevalent today?
Under what architecture would you classify technologies such as
virtualization, cloud computing, and Web-based applications? Last, what factors
are involved in selecting the architecture that is right for your
organization?
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Week
2
MIS 589 Week 2: Physical Layer and
LANs – Discussion
LAN Topology (Graded)
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In order to understand a LAN you
need to understand all the parts involved in constructing one. Discuss each
of the components of a LAN as described in the textbook and in your research.
What are the current standards for each of these components? What improvements
are on the horizon? What role does ethernet play in today’s LANs.
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MIS 589 Week 2: Physical Layer and
LANs – Discussion
Communication Media (Graded)
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Networks today will not operate
without reliable media. What are some popular media types used in
organizations today? How might factors such as transmission distance, cost,
and organization type impact your choice of media?
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Week
3
MIS 589 Week 3: The Data Link Layer
– Discussion
Media Access Control (Graded)
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As you may have discovered by
reading your textbook, there are two sub-layers that operate at the data link
layer. The media access control (MAC) sub-layer controls the hardware, so
let’s focus on that aspect. The two approaches to media access control are
controlled and contention access. What are some differences in these
approaches? When would one access control be a better option than the other?
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MIS 589 Week 3: The Data Link Layer
– Discussion
Data Link Layer (Graded)
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Network sniffing and analysis has
become a critical and necessary element of work for systems administrators,
network admin, network engineers, security analysts, and many other niches
within the realm of information technology. Wireshark is a free tool that
allows you to quickly investigate connectivity and application problems.
Download, install, and capture some local traffic from your home network.
What data link communications do you see taking place? Does anyone see a term
called ARP? What might this mean? Share your findings with the class.
Please take a look in the Webliography
for the link titled Wireshark.
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Week
4
MIS 589 Week 4: Network and
Transport Layers – Discussion
IPv4 versus IPv6 (Graded)
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At the heart of the networking
layer is addressing. IP addressing is used to locate computers and other
network devices across the Internet. Currently, IPv4 is the dominant network
addressing standard used on the Internet and within organizations. The
problem is that we have exhausted our public IPv4 addresses. IPv6 was
developed in part to address this very issue.
Do some research on IPv6 in the
DeVry Library and on the Web.
What are some immediate
differences in the two protocols? Does IPv6 provide operational improvement,
as well as increased address space? How has/will IPv6 impact organizations,
the Internet, and you at home?
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MIS 589 Week 4: Network and
Transport Layers – Discussion
Network and Transport Layer
Protocols (Graded)
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The Network and Transport layers
are where the protocol suites TCP/IP reside. This suite of protocols is
critical to the operation of the Internet and organizations as we know them
today.
Do some research via the DeVry library, the Internet, and your textbook and list and discuss three TCP/IP protocols. What are the primary functions of the Transport and Network layers? What protocols do you use each day? |
Week
5
MIS 589 Week 5: Backbone and
Wireless Networks – Discussion
Backbone Network Components (Graded)
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Your textbook explains that there
are two basic components of a backbone network, those components being a
cable and hardware device. Business processes and needs ultimately drive the
type of cable media and hardware you select. What are these types of cables
and hard devices? What are the major functions of each of these devices? What
factors might determine how we select which ones are appropriate for our
organization?
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MIS 589 Week 5: Backbone and
Wireless Networks – Discussion
Wireless Local Area Networks
(Graded)
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Wireless networks have become a
pervasive part of society today. Let’s focus our discussion on Wi-Fi also
known as the IEEE 802.11 standards group. The latest member of the 802.11
family is 802.11n. Let’s start our conversation with a discussion on
differences between LANs and Wireless LANs. What are some immediately
noticeable differences in the technologies? What advantages are inherent in
Wireless technologies on the LAN? Explore some disadvantages as well.
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Week
6
MIS 589 Week 6: WANs, MANs, and the
Internet – Discussion
Internet Architecture (Graded)
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The Internet is easily the mostly
widely used and accessible network in the world. But how is it constructed?
Many say the Internet is simply many separate networks connected together.
Read Chapter 10 and look under the hood to see how the Internet is put together.
What are some key pieces of the basic architecture of the Internet? What
redundancies are built into the Internet, as presented in Chapter 10? Do some
research on the current architecture of the Internet and on any planned
changes.
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MIS 589 Week 6: WANs, MANs, and the
Internet – Discussion
Comparing WAN Architectures (Graded)
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When making the all-important
decision of what type of WAN or MAN architecture to use, there are three
choices: circuit-switched, VPN, and packet switched architectures. Compare
and contrast each architecture. How are they unique? What do they share? What
factors drive your decision?
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Week
7
MIS 589 Week 7: Network Design,
Management, and Security – Discussion
The Wild, Wild Web (Graded)
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Although we have discussed how the
Internet has been an invaluable tool for organizations and people across the
world, it has also had adverse impacts on these same groups. From identity
theft to denial-of-service attacks, networking technology is being harnessed
to harm people and organizations. Do some research and report a recent
information security incident. How could this incident have been avoided?
What management challenges did this incident present? Discuss which
technology from Chapter 11 of your textbook could have helped to prevent or
minimize the impact of this incident.
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MIS 589 Week 7: Network Design,
Management, and Security – Discussion
Cost Justification (Graded)
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Cost-benefit analysis for our
network decisions is a critical skill and ability in IS management. What
could we do to impress the CFO with our submission? Let’s look at what they
believe is important in an article from the source, CFO Magazine‘s
site. Our ability to sell technology recommendations to management often
requires providing cost analysis and perhaps even hard dollar benefits. How
the CFO in your organization thinks should be a good indicator of what will
fly in terms of getting support from the finance department. The CFO
Magazine website almost always has some information or articles related
to technology or networking.
Go to the CFO Magazine‘s
website found in the Webliography under CFO.
How could the articles or
recommendations at the CFO site help your efforts? Are these subjects where
we should be looking to for future investments? How likely is your organization
to be looking at these?
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