Network
architecture (Models of Computer Network)
The arrangement of the computers
on the network which is based on the computing model is called network
architecture. Its types are
a)
Centralized
computing network
b)
Client
/ Server Network
c)
Peer
to Peer Network
Centralized
computing network [SQE 2074K]
A centralized computing network
is a network in which a central host computer performs data processing and
storage on behalf of clients. It
is different from client server network as client server network consists
of at least one server and one or more client as well as client server provides
high security of data and other resources.
Client/server
network [SLC 2071]
Client/ server network is a type of
network architecture that consists of at least one server and one or more
clients or workstations, where users do their work. It provides central
security administration and the network administrator is responsible for data
security and other resources management of the network.
Peer-to-peer
network [SLC 2071]
Peer-to-Peer
network is a group of computers, which function both as servers and
workstations to share data, information and other resources of the network. It
lacks centralized network administration, where the network administrator needs
to manage security on each computer. It provides no reliable security and might
put data in higher risks.
Client/server network Vs Peer-to-peer
network
|
Client/server network |
Peer-to-peer network |
|
There is a specific server and specific clients connected to the server. |
Clients and server are not distinguished; each node act as client and server. |
|
The client request for service and server respond with the service. |
Each node can request for services and can also provide the services. |
|
The data is stored in a centralized server. |
Each peer has its own data. |
|
The client-server are expensive to implement. |
Peer-to-peer are less expensive to implement. |
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