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Unit X: VPN and Network Security - Data Communication and Computer Network
A VPN extends a private network across a public network, such as the …
Unit IX: Network Servers - Data Communication and Computer Network
Network servers are dedicated computers connected to a network that r…
Unit VIII: Network Layer and Internet Layer - Data Communication and Computer Network
The network layer is concerned with getting packets from the source a…
Unit VII: TCP / IP Reference Model - Data Communication and Computer Network
TCP/IP means Transmission Control Protocol and Internet Protocol. It …
Unit VI: Data Link Layer - Data Communication and Computer Network
The Data Link Layer is the second layer in the OSI model, above the P…
Unit V: Physical Layers and its Design Issues - Data Communication and Computer Network
Physical layer is the lowest layer of the OSI reference model. It is …
Unit IV: Reference Model - Data Communication and Computer Network
In computer networks, reference models give a conceptual framework th…
Unit III: Multiplexing and Switching - Data Communication and Computer Network
Multiplexing is the set of techniques that allows the simultaneous tr…