Basic- Networking

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                                               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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