This is about IP addresses Find the class of each address A

(This is about IP addresses)

Find the class of each address:

A.                  10110100.11101011.00001000.10010001

B.                  11001100.11111111.11000000.00000001

C.                  00010001.11001100.00000001.00010010

Solution

A) first octet is 10110100 whose value is 180 in decimal

So IP address is of class B as 1st octet is in the range 128-191

B) first octet is 11001100 whose value is 204 in decimal

So IP address is of class C as 1st octet is in the range 192-223

C) first octet is 00010001 whose value is 17 in decimal

So IP address is of class A as 1st octet is in the range 1-127