[2017 Newest] Ensure Pass 312-50v9 Exam By Training Lead2pass New PDF Dumps (161-180)
Lead2pass 2017 September New EC-Council 312-50v9 Exam Dumps!
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Following questions and answers are all new published by EC-Council Official Exam Center: https://www.lead2pass.com/312-50v9.html
QUESTION 161
Which security strategy requires using several, varying methods to protect IT systems against attacks?
A. Defense in depth
B. Three-way handshake
C. Covert channels
D. Exponential backoff algorithm