NA新手,又来给大家添麻烦了。。。不好意思。。。在这里先谢谢了
QUESTION 88
Which two subnetworks would be included in the summarized address of 172.31.80.0 /20? (Choose two.)
A. 172.31.17.4 /30
B. 172.31.51.16 /30
C. 172.31.64.0 /18
D. 172.31.80.0 /22
E. 172.31.92.0 /22
F. 172.31.192.0 /18
Answer: DE
Explanation/Reference:
考点:考查VLSM知识点
172.31.80.0/20网段所在的范围是172.31.64.0--172.31.95.255/20
D/E都在这个范围内。