QUESTION 75
Given the address 192.168.20.19/28, which of the following are valid host addresses on this subnet?
(Choose two.)
A. 192.168.20.29
B. 192.168.20.16
C. 192.168.20.17
D. 192.168.20.31
E. 192.168.20.0
Answer: AC
Section: Chapter 3: IP Addressing and VLSM
Explanation/Reference: (192.168.20.19/28所属网段的范围是:192.168.20.16-192.168.20.31/28) 这个是怎么算出来的?