What is the network address for the host with IP address 192.168.23.61/28?
A.
192.168.23.0
B.
192.168.23.32
C.
192.168.23.48
D.
192.168.23.56
E.
192.168.23.60
Explanation:
Convert bit-length prefix to quad-dotted decimal representation, then from it find the number
of bits used for subnetting you can find previously calculated number of subnets by separating
subnets each having value of last bit used for subnet masking Find that your IP address is in
which subnet, that subnet’s first address is network address and last address is broadcast
address.
Based on above steps the answer is option C
C
The increment is 16 (/28 converted to dotted decimal is 240, 256 – 240 = 16)
We can create the following subnets:
192.168.23.0
192.168.23.16
192.168.23.32
192.168.23.48 –> the given host is in this subnet
192.168.23.64
answer A is the network address for the first subnet
answer B is the network address for the third subnet
answer D is a usable address in the fourth subnet, but not the network address for this subnet
answer E is incorrect because of the same reason