Network 201.148.104.0/21 is subnetted using a /23 mask. How many subnets and host addresses per subnet will be obtained with this mask?
Network 201.148.104.0/21 is subnetted using a /23 mask. How many subnets and host addresses per subnet will be obtained with this mask?
When subnetting the network 201.148.104.0/21 with a /23 mask, 2 additional bits are taken from the host portion to create subnets (since /21 to /23 is a difference of 2 bits). These 2 bits allow for 2^2 = 4 subnets. Each /23 subnet has 9 bits remaining for host addresses (32 - 23 = 9), meaning each subnet can have 2^9 - 2 = 510 usable host addresses (the -2 accounts for the network and broadcast addresses). Therefore, the correct answer is 4 subnets, 510 hosts per subnet.
Ans should be B. 4 subnets & 510 hosts. From 21 to 23 --> 2 bits taken for nw addr. So 2^2 = 4 subnets masking /23 --> 9 bits host addr. So 2^9 - 2 = 510 hosts
B is correct, not A
B is the correct answer.
B is the right answer.
Answer should be B