NIST defines three service models, which can be viewed as nested service alternatives: software as a service, platform as a service, and _________ as a service

What percent of Internet users access the web at least some of the time with a mobile device?

A) 50 percent B) 60 percent C) 70 percent D) 80 percent E) 90 percent

Shelly Brunner owns a sports-themed restaurant which is located in an upscale business district in Chicago

One advantage that Shelly has is that she bought the lot she built her restaurant on 25 years ago when lots in the area were selling for $50,000. Shelly knows that several potential competitors have looked at bare lots near his business but haven't been willing to pay the asking prices, which are as high as $500,000. Which of the six major sources of barriers to entry is causing a disincentive for new firms to enter Shelly's industry? A) Capital requirements B) Economies of scale C) Product differentiation D) Government and legal barriers E) Cost advantage independent of size