Transcript Assignment # 3 - UNT Class Server

Assignment # 3
Networking Components
By: Jeff Long
HUB
A Hub is a small simple device that joins multiple computers/
Printers together. Most Ethernet hubs support up to four
computers. In addition they can also connect game consoles,
as seen in the diagram. They are relatively inexpensive and range
in price from 30$ to 300$. A hub might be used in a home to connect
a laptop as well as a game console to the internet, allowing the user
to surf the web and play online games.
Switch
A networking switch is used to connect printers,
computers and severs within a building or school
campus. A switch serves as a controller, allowing
network devices to talk to each other efficiently, they
are often referred to as a switching hub. They are
used by businesses and schools to make it more
efficient for network devices to communicate with
each other. Network switches can range in price
from 50$ to 500$ additionally more than one
network switch may be required depending on the
size of the network.
Router
•
A router is a small physical device that connects two
or more networks together. You have to have an
ISP (internet service provider) in order to be able to
connect to the internet. Virtually everyone that uses
the internet has to use a router. Routers are
relatively inexpensive and typically come with any
internet service you choose to purchase, however in
store they can go from 30$ to 200$.
Bridge
•
A bridge is a network device that connects two parts
of a network together. For instance the company I
work for has a call center that is on the same
network and a bridge deciphers whether a message
goes to my department or the call center across the
street that is also on the same network. Any
business or school with multiple departments can
use bridges. Network bridges can run from 150$ to
2000$
Gateway
•
A gateway is a network point that acts as an
entrance to another network. On the Internet, a
node or stopping point can be either a gateway
node or a host (end-point) node. Both the
computers of Internet users and the computers that
serve pages to users are host nodes. The
computers that control traffic within a company's
network or at a local Internet service provider (ISP)
are gateway nodes.
Gateways can run from 500$ to 5000$
Firewall
A firewall, whether hardware based or software
based is used to keep a network secure. The
primary goal of a firewall is to analyze all incoming
traffic and to analyze the data packets to make sure
they are not harmful. The firewall is like a bridge
between the users network which assumed to be
secure and also another network like the internet
that is not secure. Most personal computers have
software that acts as a firewall and additionally most
routers have firewall components in them. Almost
everyone that accesses the internet uses sometime
of firewall software or hardware. Firewall hardware
can range from 300$ to 3000$ dollars, firewall
software can range from 30$ to 300$.
Wireless AP (Access Point)
A wireless access point is a device that allows
wireless devices to connect to a wired network via
WIFI, Bluetooth or any related standard. The WAP
usually connect to a wired router or is in the router
itself. Any device that is able to connect to a
wireless access point is able to utilize it, hence any
business or individual that chooses can opt to have
a wireless connection. The price of WAP can range
from 40$ to 600$ for some of the more powerful
brand name devices.
Full Diagram