請問ccna題庫~802,選擇題第16題~ip合併的算法?
refer to the exhibit.
what is the most efficientsummarization that R1 can use to advertise its networks to R2?
圖
http://farm3.static.flickr.com/2074/1918216662_1c86f955da_o.jpg
A.172.1.0.0/22
B.172.1.0.0/21
C.172.1.4.0/22
D.
172.1.4.0/24
172.1.5.0/24
172.1.6.0/24
172.1.7.0/24
E.
172.1.4.0/25
172.1.4.128/25
172.1.5.0/24
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答:C
有大大可提供一下關於以上ip合併問題的詳解嗎?thx
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