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Introductio to network 1
1.
2.
Why computer network? Sharing
in resources, deliver communication services. Classification of networks: 1- Size
3.
2- Topology
4.
3- Network Model
(network architecture): Peer to peer Client server based
5.
Network components: 1- Computers: 2-
NIC: Network Interface Card 3- NOS: ex. Windows, Unix, Linux
6.
4- Media
7.
5- Network devices: •Switch •Router •Firewall •Access
point •IP telephony •Modem
8.
Network terminologies: Port number: Well-known
ports: 0:1023 Randomly selected ports (dynamic): 1024: 65535 Network communication modes: Connection oriented: slow, reliable Connection-less: fast, not reliable
9.
TCP/IP model
10.
TCP/IP model
11.
TCP/IP data flow
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