TYPES OF NETWORKS
LAN:-local area networks are used to connect networking devices that are in a very close geographical such as a floor of a building , a building it self or with in campus.
MAN:- metropolitan area network are used to connect network devices that may span around a city.
WAN:-wide area network which connects two or more LAN’S present geographical locations.
BASIC REQUIRMENTS TO FORM A NETWORK:-
· NIC(network interface card) also called LAN card.
· Media.
· Network devices.(hub, switch, router, etc..
· Protocol’s.
· Logical address(IP address).
NIC:- NIC/ LAN card, NETWORK adapter,RJ-45port,Ethernet catd
It has 8 pin.
Physical address/hardware address.
MAC(media access control).
Mac is 12hex/48bits.
Ex:- 0A-45-9C-65-7F-6D
Oa-44-9c is the manufacture id and 66-7f-3d is the serial number.
To get mac address in windows in cmd window ‘getmac’ or ‘ipconfig’
In linux to get mac address type in cmd window ‘ifconfig’
NIC is a interface between the computer and the network.
Ethernet cards have a unique 48 bit address called MAC address(media access control).
MAC address is also called as physical address (or )hardware address.
The 48bit MAC address is represented as 12 hexadecimal numbers.
Ex:- 10-16-DF-FC-45-3F.
Network cards are available in different speed.
· Ethernet (10MBPS)
· Fast Ethernet (100MBPS)
· Gigabit Ethernet (1000MBPS)
