Ronald downloads a movie from the Internet onto his company's computer. During this process, his system gets infected with a virus. The virus spreads rapidly in the company's network causing the server to crash. This type of virus is most likely to be ________.
A. adware
B. a worm
C. phishing mail
D. a Trojan horse
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Which of the following is an example of consumer-to-consumer electronic commerce?
Alisa makes an online deposit of $5,000 into her friend's account.
B. Jerry, a manufacturer, conducts business over the Web with its retailers.
C. Ashley buys a new pair of shoes on Fequette.com.
D. Sophiabuys second-hand Lobsang's mountaineering equipment on Gumtree.
E. Tombuys a gift for Vanessa on Forever.com.
The architecture of a Customer Relationship Management system includes operational CRM, analytical CRM and collaborative CRM.
A. 对
B. 错
Describe how the five IT mega trends influence the business model of Uber, a company that provides peer-to-peer ridesharing system that disrupted the transportation industry.
Explain the difference between cold back up and hot back up site.