CIS 505 Week 6 Discussions STR
Just Click on Below Link To
Download This Course:
https://bit.ly/2QfNfjC
CIS 505 Week 6 Discussions STR
CIS 505 Week 6 Discussion 1
Asynchronous Transfer Mode (ATM) was made for
multimedia applications or similar items due to the large bandwidths they
carried. ATM is better suited for applications using real-time
transmission of video signals. If ATM is preferred, a significant
overhead is involved in integration into the ATM layers. The fastest ATM products
at the moment operate at 622Mbit/s.
Gigabit Ethernet offers routine improvements
for prevailing networks without having to change the cables, protocols and
applications already in use. Gigabit Ethernet advantage is basically its origin
in the proven technology of Ethernet. Meaning it is fully compatible with
existing Ethernet technologies. This means a performance enhancement for
existing networks without having to change the cables, protocols and
applications already in use. Users can therefore work on the basis that
migration from Ethernet to Gigabit Ethernet will be very easy and transparent.
Applications that run through Ethernet will also work by Gigabit Ethernet. At
1000Mbit/s, Gigabit Ethernet is almost twice as fast as ATM. Speeds are
seamlessly transmitted at a higher rate.
Compare and contrast the advantages of Fast
Ethernet, Gigabit Ethernet, and 10-Gbps Ethernet.
Fast Ethernet carries traffic at a rate of
100Mbit per second. When Fast Ethernet was upgraded by improving the
speed and reducing the bit.
10-Gbps advantage is the speed. It has better
hardware and rack space efficiency, simple virtualization, and greater
scalability. In standard Ethernet, bit was transmitting in one second and in
Fast Ethernet it takes 0.01 microsecond for one bit to transmit.
Gigabit Ethernet is another term of Ethernet
in computing network, for carrying on the traffic at the rate of 1billion bits
per second. This method is expressed in the IEEE 802.3 standard and is
presently being used as the fortitude in many enterprise networks. Gigabit is
carried primarily on optical fiber. Optical fiber is the medium that
transmit information when light pulses along a glass or plastic strand or
fiber.
Connecting Gigabit Ethernet using the lower
speed Ethernet mechanisms is easy because one can use LAN switches or routers
to modify one physical line speed to the other. Gigabit Ethernet uses 64 –
1514-byte packets IEEE 802.3 frame format which is found in Ethernet
technologies and Fast Ethernet. Changes are not necessary because the frame
format and size are the same. This mutative advancement track permits Gigabit
Ethernet to be flawlessly joined into current Ethernet and Fast Ethernet
networks.
CIS 505 Week 6 Discussion 2
Wireless LAN. Please respond to the
following:
- Analyze the characteristics of wireless LANs and assess the
security concerns of this technology in organizations such as universities
or hospitals. Identify additional areas of concern for organizations that
implement a wireless LAN. Then, explain whether the implementation of a
WAN would solve these problems. Explain your rationale.
- Rank the following IEEE 802.11 standard addresses in order of
importance with the first one being the most important. Justify the reason
for your chosen order.
·
- Association
- Re-association
- Disassociation
- Authentication
A Wireless LAN performs a malleable data
communication system regularly increasing satisfactorily than interchanging a
wired LAN within a edifice or college grounds. WLANs use radio frequency
to conduct and obtain data over the air, diminishing the essential for wired
correlations.
Wireless safekeeping is vital. Wireless
indicators often circulate afar tangible obstacles, the peril of someone
struggling to force an entry using the wireless foundation is sophisticated paralleled
to someone attaining sensible admittance to a wired port.
Guests and Personnel should be placed on
different Wi-Fi networks so that important information cannot fall into the
wrong hands. One’s goal to provide sufficient Wi-Fi signal only to the areas
where it’s required. If one has Wi-Fi signal that extends outside structure
ramparts and out into communal cosmoses, one chances of alluring potential
threats from criminals who may try to interrupt one’s network or impede with
the wireless signal. Limiting Wi-Fi signal would solve this issue.
Association: Once authentication is complete,
mobile devices can associate (register) with an AP/router to gain full access
to the network. Association allows the AP/router to record each mobile device
so that frames are properly delivered. Association only occurs on wireless
infrastructure networks, not in peer-peer mode. A station can only associate
with one AP/router at a time.
http://www.intel.com/content/www/us/en/support/network-and-i-o/wireless-networking/000006508.html
Disassociation: A station or access point may
invoke the disassociation service to terminate an existing association. This
service is a notification; therefore, neither party may refuse termination.
Stations should disassociate when leaving the network. An access point, for
example, may disassociate all its stations if being removed for maintenance.
http://www.informit.com/articles/article.aspx?p=24411&seqNum=7
Re-association: The re-association service
enables a station to change its current state of association. Re-association
provides additional functionality to support BSS-transition mobility for
associated stations. The re-association service enables a station to change its
association from one access point to another. This keeps the distribution
system informed of the current mapping between access point and station as the
station moves from one BSS to another within an ESS. Re-association also
enables changing association attributes of an established association while the
station remains associated with the same access point. The mobile station
always initiates the association service.
http://www.informit.com/articles/article.aspx?p=24411&seqNum=7
Authentication: 802.11 authentication is
the first step in network attachment. 802.11 authentication requires a mobile
device (station) to establish its identity with an Access Point (AP) or
broadband wireless router. No data encryption or security is available at this
stage.
The Institute of Electrical and Electronics
Engineers, Inc.(IEEE) 802.11 standard defines two link-level types of
authentication:
- Open System
- Shared Key
http://www.intel.com/content/www/us/en/support/network-and-i-o/wireless-networking/000006508.html
Comments
Post a Comment