【单选题】
which attack involves large numbers of ICMP packets with a spoofed source IP address?___
A. smurf attack
B. Teardrop attack
C. Nuke attack
D. SYN Flood attack
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答案
A
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5用万用表电阻挡检测某一个二极管时,发现其正、反电阻均近于1000KΩ,这说明该二极管是属于___。
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6稳压二极管是一个可逆击穿二极管,稳压时工作在___状态。
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21在半波整流电路中,设U2为其输入电压,输出电压的平均值约为___。
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