Questions from Database Systems

Q: Define and explain the concepts of method overriding and polymorphism. Use

Define and explain the concepts of method overriding and polymorphism. Use examples in your explanations.

Q: What does e-commerce mean and how did it evolve?

What does e-commerce mean and how did it evolve?

Q: Give an example of an e-commerce transaction scenario. What

Give an example of an e-commerce transaction scenario. What three things should security be concerned with in this e-commerce transaction?

Q: You are hired as a resource security officer for an e-

You are hired as a resource security officer for an e-commerce company. Briefly discuss what technical issues you must address in your security plan.

Q: Identify and briefly explain five advantages and five disadvantages of e-

Identify and briefly explain five advantages and five disadvantages of e-commerce.

Q: Define and contrast B2B and B2C e-commerce styles.

Define and contrast B2B and B2C e-commerce styles.

Q: Describe and give an example of each of the two principal B2B

Describe and give an example of each of the two principal B2B forms.

Q: What does normalization have to do with creating good tables, and

What does normalization have to do with creating good tables, and what's the point of having to learn all these picky normalization rules?

Q: Describe e-commerce architecture: then briefly describe each one of

Describe e-commerce architecture: then briefly describe each one of its components.

Q: What types of services are provided by the bottom layer of the

What types of services are provided by the bottom layer of the e-commerce architecture?