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.
Reference: Subnetwork
B
B