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多項(xiàng)選擇題

You are the network consultant from passguide.com. Do you know what attacks are software based attacks that disable your computer and attack user by e-mail? （）

A.Executable
B.Trojan
C.Virus
D.Worm

單項(xiàng)選擇題

Telepresence and video conferencing have been an increasingly important component of the overall collaboration marker, which indicator is the best measure of the continued importance of these technologies going forward?（）

A.generation Y ,raised on video, comprises 17 percent of the world population
B.the annual growth rate of the video-conferencing market is 23 percent
C.the U.S internet traffic annual growth rate is more than 40 percent
D.thecisco long-term growth-rate target is 12 percent to 17 percent