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1
銆佸湪
OSI
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D
锛?/p>
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A
锛夊垎缁?/p>
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B
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锛?/p>
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锛夊抚
锛?/p>
D
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2
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缃戠粶鐢ㄦ埛鍙互閫氳繃
Internet
缁欏叏涓栫晫鐨勫洜鐗圭綉鐢ㄦ埛鍙戠數瀛愰偖浠讹紝
鐢靛瓙閭欢鐨勪紶閫掑彲鐢变笅闈㈢殑
锛?/p>
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鍗忚瀹屾垚銆?/p>
锛?/p>
A
锛?/p>
POP3
鍜?/p>
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锛?/p>
B
锛?/p>
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锛?/p>
C
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3
銆佸湪浜掕仈缃戠粶涓紝
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C
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A
锛夌綉鍏?/p>
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B
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C
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D
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4
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B
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D
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5
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B
锛?/p>
锛?/p>
A
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MAN
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6
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锛?/p>
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32
浣嶄簩杩涘埗
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C
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16
杩涘埗
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D
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128
浣嶄簩杩涘埗
7
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A
锛?/p>
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A
锛?/p>
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锛?/p>
B
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C
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IEEE802
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8
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IP
鍗忚鐨勪富瑕佺増鏈槸锛?/p>
C
锛?/p>
锛?/p>
A
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IPv2
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锛?/p>
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C
锛?/p>
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9
銆佸湪涓�涓?/p>
C
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A
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256
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B
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255
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128
锛?/p>
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254
10
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B
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锛?/p>
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D
锛夌數璇濈嚎
11
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C
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RJ-45
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D
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2312
12
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鐨勶紙
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A
锛夌墿鐞?/p>
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B
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D
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13
銆佽绠楁満缃戠粶鍏变韩鐨勮祫婧愪富瑕佹槸鎸囷紙
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14
銆佹棤绾垮眬鍩熺綉鐨勬爣鍑嗘槸锛?/p>
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銆?/p>
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A
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D
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IEEE802.5
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1
鍒嗭紝鍏?/p>
20
鍒嗭級
1
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2
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4
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鏄熷瀷
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鐜瀷
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5
銆佹煇涓?/p>
IP
鍦板潃鐨勫崄鍏繘鍒惰〃绀轰负
17110581
锛屽皢鍏惰浆鎹负鐐瑰垎鍗佽繘鍒跺舰寮忎负
23.17.5.129
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A
绫诲湴鍧�銆?/p>