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In class A, the first bit of the first octet is always set to 0 (zero).

Class A 0xxx : x can be 0 or 1

Class B 10xx

Class C 110x

Class D 1110

No option is correct
1 votes
1 votes

Answer : All    

                                      

1010 is 10 in Decimal A in Hexadecimal

1011 is 11 in Decimal B in Hexadecimal

1100 is 12 in Decimal C in Hexadecimal

1110 is 13 in Decimal D in Hexadecimal

Range of class A Network is from 0-128 in which first Ip and Last Ip address is not used as valid Ip address because they are to serve spacial purpose 

First Ip address in class A network Let say 1.0.0.0   it is having a valid no in n/w id and all 0's in host id part which indicates the network id of entire network.

Last Ip address of class A is used as Directed Broadcast Address for Exp : 2.255.255.255

Answer:

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