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【单选题】
关于tcpdump抓包工具描述正确的是?A.
-l:表示数据表抓取长度,0表示不限制长度,让tcpdump自动选择合适的长度来抓取数据包;
B.
-i:表示需要监听的端口,比如可以选择eth1 eth2,any表示所有端口;
C.
-w:跟文件名xxx.pcap直接将包写入文件中,并不分析和打印出来;
D.
-v:详细的输出,统计抓包数量
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A.
1200V
B.
380V
C.
220V
D.
24V
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A.
1200 V;
B.
1500 V;
C.
1000V;
D.
1800V
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