摘要： 真题如下： 1. Which of the following should a technician recommend to prevent physical access to individual office areas? (Select TWO). A. Video surveillance B. Blockade C. Key card readers D. Mantrap E. Perimeter fence Answer: CD 2. Which of the following type of attacks requires an attacker to sniff the network? A. Man-in-the-Middle B. DDoS attack 阅读全文