Question

In: Computer Science

Find the number of addresses in a block of classless addresses if one of the addresses...

Find the number of addresses in a block of classless addresses if one of the addresses is 101.10.2.8/29.
Total addresses=
Usable addresses=

briefly explain your answer

Solutions

Expert Solution

Address:   101.10.2.8            01100101.00001010.00000010.00001 000
Netmask:   255.255.255.248 = 29 11111111.11111111.11111111.11111 000
Wildcard: 0.0.0.7               00000000.00000000.00000000.00000 111
=>

Network:   101.10.2.8/29      01100101.00001010.00000010.00001 000 (Class A)
Broadcast: 101.10.2.15           01100101.00001010.00000010.00001 111
HostMin:   101.10.2.9            01100101.00001010.00000010.00001 001
HostMax:   101.10.2.14           01100101.00001010.00000010.00001 110
Hosts/Net: 6                    

Total Number of addresses in block is 2^(32-15) which is 2^17 i.e. 131072.


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