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6) Which statement about the growth of e-business in the 1990s is not true?
A) the U.S. Congress did not impose a sales tax on purchases via the Internet
B) credit card processing for online purchases was available even before the web browser
C) DSL and cable modems to U.S. homes increased the download speeds for web sites
D) search engines enabled users to find web sites without keying in their URLs
7) Which of the following uses cryptography to ensure secure transmission over a public
network?
A) digital signatures
B) communication protocols
C) web browsers
D) search engines
8) Which of the following are likely to have Web portals?
A) news sites
B) search engines
C) companies
D) all of the above
9) According to Porter’s model, which of the following is not one of the competitive forces that
business organizations typically face?
A) supplier power
B) threat of new entrants
C) threat of government regulation
D) threat of substitute products
10) According to Porter (2001), the Internet has had which kind of competitive impact?
A) widening of geographic markets to increase the reach to potential customers
B) increased difficulties in keeping a product or service offering proprietary
C) reduction in switching costs for customers
D) all of the above