Subnets are created by using________.
A.
subnet
B.
netmask
C.
unicast
D.
broadcast
Explanation:
The process of subnetting involves the separation of the network and subnet portion of an address from the
host identifier. This is performed by a bitwise AND operation between the IP address and the (sub)network
prefix. The result yields the network address or prefix, and the remainder is the host identifier.
The routing prefix of an address is written in a form identical to that of the address itself. This is called the
network mask, or netmask, of the address. For example, a specification of the most-significant 18 bits of an
IPv4 address, 11111111.11111111.11000000.00000000, is written as 255.255.192.0.