Exam 14: Ecommerce, Databases, and Data Science

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____ is the process of automatically analyzing large amounts of data to discover and interpret previously hidden patterns contained therein.

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As of April 2017, ____ had almost 169 million active registered users, and there were over 800 million listings of items for sale.

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Related records are kept in a _________.

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__________ is the basis of Bitcoin cybercurrency.

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A database management system works much like a simple file manager.

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____________________ is an online payment service, an alternative to a customer paying an online merchant by credit card.

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Briefly, what are the goals of establishing an online shopping/ecommerce presence as discussed in this chapter?

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A ____ runs Bitcoin software that verifies (using a hash function)that the blockchain has not been altered in any way since the previous transaction, and for this service, the miner is rewarded with new bitcoins.

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Opening an online store requires at least the same amount of planning than building another physical store location.

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A ____ gives the user, or the user's application software, the ability to combine and manipulate data easily in ways that would be very difficult if the data were kept in separate and unrelated files.

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Accessing a record in a large file involves at least one disk input/output (I/O)operation(s).

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____ allow the physical data to reside at separate and independent locations that are electronically networked together.

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The number-one attraction to online shopping is probably ____.

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A ____ is an attribute or combination of attributes that uniquely identifies a tuple.

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A ____ is a collection of databases that contain current and archived data used for research and analysis purposes rather than to manage day-to-day business transactions such as inventory control or payroll data.

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Each record in a file contains information about an item in the "universe of discourse" that the file describes.

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Services such as Apple Pay and PayPal are examples of __________.

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How do you manage a relational table?

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Discuss the risks associated with large databases (big data)full of personal and financial information being accessible on the Web.

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Talk about the use of cookies in ecommerce. Discuss how they are useful. Are they potentially dangerous?

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