Exam 1: How might we determine if these devices are all on the same network?

Question

For each IPv4 network prefix 192.168.153.0/19, which of the following are part of the same subnet?

a) 192.168.128.1
b) 192.168.254.3
c) 192.168.175.9
d) 192.168.143.16

Answer 1

192.168.153.0/19
that will be 11000000.10101000.10011001.00000000
192.168.128.1
that will be 11000000.10101000.10000000.00000001
192.168.254.3
that will be 11000000.10101000.11111110.00000011
192.168.175.9
that will be 11000000.10101000.10101111.00001001
192.168.143.16
that will be 11000000.10101000.10001111.00010000

we need 19 first number look like the same so,
it will be 192.168.128.1 and 192.168.143.16
right?

Comments

Yes great work! It would appear that you have this mastered :-)