【单选题】
Which type of social-engineering attack uses normal tele phone service as the attack vector？___
A. smishing
B. dialing
C. phishing
D. vishing
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答案
D
解析
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Which type of attack can exploit design flaws in the implementation of an application without___
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How can you protect CDP from reconnaissance attacks？___
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【单选题】
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Which two features are commonly used CoPP and CPPr to protect the control plane？ ___
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【多选题】
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