Consider a CIDR network address 194.24.0.0/21. The last address in this network will be:

Question

Question

This question was previously asked in

HTET PGT Official Computer Science Paper - 2017

Answer 1

Here, no. of mask bits = network id = n = 21

In classless addressing, no. of address are given by 232-n

For last address set 32 – n rightmost bits to 1.

i.e. set 11 rightmost bits to 1.

194.24.0000 0000. 0000 0000

194.24.0000 0111. 1111 1111

The last address in this network will be 194.24.7.255