A server has been assigned the 192.168.100.127/25 IP address. The server is experiencing
strange network connectivity related problems. Which of the following would BEST describe the
problem?
A.
IP address is classful.
B.
IP address is a subnet broadcast address.
C.
IP address is a subnet network address.
D.
IP address is classless.
Why wouldn’t this be considered a Classless IP address? (Answer D?)
It is classless due to the fact that it has the /25, meaning it is being manually subnetted, as opposed to classful, meaning the default subnet masks are defined by the first octet’s value.
Example: 192-233 as the first octet value means it is a class C address, and if it were classful, it would have a default subnet mask of 255.255.255.0.
However, with the /25, it becomes classless with a subnet mask of 255.255.255.128.
The address range within this subnet with this IP address of 192.168.100.127 is 0-127, with 128 addresses, but with the possibility of only 126 hosts.
192.168.100.0 is the subnet address, and 192.168.100.127 is the broadcast address, both of which cannot be assigned to any host.
I choose B