Which of the following is not true of MUST constraint?
A) It may be needed in ternary relationships to enforce special business rules.
B) It can be expressed directly in a relational model.
C) It must be enforced by program code.
D) It requires that one entity be combined with another entity.
B
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Which of the following statements about how adopters participate in the diffusion process is FALSE?
a. Innovators are the first to purchase a new product. b. There are three categories of consumers who will adopt computer products. c. The dominant characteristic of members of the late majority is skepticism. d. Laggards are the last consumers to adopt a new product.
When using social media to talk about topics related to your business, how can you make the information valuable to the audience?
A) Make the posting casual and conversational B) Make the information useful and interesting C) Use only original content D) Use the site for self-promotion and to emphasize the sale of products and services E) Include links to other social media sites