Answer Posted / s.m.feroz ahmed
Hi,
Networking is defined as connectivity between peers inside
network and outside network.Inside network connectivity in
Networking topology is known as Lan and outside Network
connectivity is called as WAN.Lan Is defined as Local Area
Network between peer systems and Wan is defined as Wide
Area Network between Lan to a Lan in different Location and
this connectivity of lan in different locations is defined
as WAN.Networking is depends on OSI layer which is defined
as OPen System Internetworking.In OSI Layer data is reached
to destination from source passing all the 7 layers of OSI
layer and these 7 layers were on either side of network and
they are defined as
Presentation Layer
Data-link Layer
Network Layer
Transport Layer
Session Layer
Physical Layer
Application Layer
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