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Explain the purpose of ip address? And also Give the brief
description about Class A,Class B and Class c?
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Answer Posted / karthikaayyappan
IP addresses are 32 bit long and are used in the source
and destination address fields of IP packets.The purpose
of the IP address is that not only identifying the
individual devices but also to identify the host to the
network.
Class A: If the first bit of IP address is 0,it is the
address of class A.The next 7 bits identify the network and
the last 24 bits identify the host.There are fewer than 128
class A network numbers, but each class A network can be
composed of millions of hosts.
Class B: If the first 2 bits of IP address is 1 0,it is
the address of class B.The next 14 bits identify the
network and the last 16 bits identify the host.There are
thousands of class B network numbers and each class B
network can be composed of thousands of hosts.
Class C: If the first 3 bits of IP address is 1 1 0,it is
the address of class C.The next 21 bits identify the
network and the last 8 bits identify the host.There are
millions of class C network numbers and each class C
network can be composed of fewer than 254 hosts.
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