Networking
models:
Operating
system or data communication software that makes the network client server or
peer to peer network is called network models.
There are
three network models:
·
Client-server
model.
·
Peer-to-peer
model.
·
Hybrid
network model.
Client
server model:
ü In a client server arrangement
network services are located on the central
computer called a server.
ü The typical LAN is a client server
network.
ü The server is the main computer to
control the all entire network.
ü The server responds to the request of
clients for file, print and other services.
ü The desktop computer function as
client and one or special software function as servers.
ü In this model the network
administrator controls the server where
as the clients computers are used by users.
ü Each user has its own rights which
are allowed by administrator.
ü Window NT window 2000, UNIX &
LINUX are used in these models.
ü It is the most secure and safe model
for the protection of data and information.
Peer-to-peer
model.
ü In this network model the networked
computers act as equal partners or peers.
ü As peer each computer can act as a
client or server.
ü In this model all computers working
are equal.
ü At one time computer A may make a
request for a file from computer B which then provides the file to computer A.
in this case computer A function as client, while B function as the server.
ü At later time computer A and B can
reverse the rules.
ü Window 95,window 98 are used in
peer-to-peer network as a operating system.
ü In this model no network
administrator is required .
ü As in this network there is no
central computer so this model is less secure.
Hybrid
network model:
ü The word hybrid means mixture of two
opposite qualities in one and same thing.
ü Now when both the client server and
peer to peer networking feature exist in a network then such a network will be
called hybrid model.
ü The advantages of client server model
cancel the disadvantages of peer to peer network whereas the advantages of peer
to peer may cancel the disadvantages of client server model.
ü The only disadvantage is that network
administrator whose services are still required due to the presence of client
server characteristics.
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