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Basic- Networking

                                               Basic of networking
 contents of networking

  1. What mean of network
     How does it work
  2. Hub,switch,router.
  3. Classifying network
  4.  Proxy,ip subnet ,dns       


         Computer Networking
 The computer networking is a group of interconnected   

(network capable devices)
Components network,interface card, hubs,switchs
,Routers.cable like cat 6,cat 5




  • How it network work,
  •  What is communicated  
  • When is it communicated 
  • How it communicated

 Example : Talking ,torch light communication
 We need a protocol : we set rules gove rning data communication
Tcp/ip is such a protocol

Basic Require  hardware components
network interface card (nic)
hub
switch
router
cable


Frist i tell me What a interface card
 this card allows a network capable device access
to a computer network such as the internet

the Mac address identifies the vendor and the serial
number of the Nic which is the
unique to the card




I tell u what is hub
 a network hub or repeater hub is a device
 for connecting multiple
twisted pair or fiber optic ethernet devices
together.

when a packet arrives at one port,it is copied to
all the port.it is copied to all the ports of the hub
for transmission

 Switch


 Switch

  The switch is a devices that performs that
  performs
It forwards and filters datagrams
(chunk of data communication )
Between ports based on the mac-address in the packets



 Router

Forward data packets
between networks
using headers and forwarding
tables to determine the best path to
forward the packets,

Processor,Os , Memory

 Cables



 Category 5 Cable ,Known as cat 5 or
Cable and Telephone is a twisted pair cable (100mbs)

A optical fiber is a glass
 plastic fiber that
carries light along its length

(40gbps)


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