Consider the reservation of IP Addressing what mask you will use in a point to point connection between two Buildings?
A. 255.255.252.0
B. 255.255.255.252
C. 255.255.255.254
What mask you will use in a point to point connection between two Buildings?
C is correct
There is a RFC for this /31 in v4:
https://tools.ietf.org/html/rfc3021
It should be /31 : C
if reservation is the concern here /31 (use 2 IPs)saves more IPs than /30 ( uses 4 IPs)
so C should be the answer not B
correct answer is B