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Exam 5: Data and Knowledge Management

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Question 51

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Not including alphabetic characters in a Social Security Number field is an example of _____ .

A) Data isolation.
B) Data integrity.
C) Data consistency.
D) Data redundancy.
E) Application/data dependence.

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Question 52

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Traditional data formats change ______ while big data formats change _______.

A) slowly, rapidly
B) rapidly, slowly
C) slowly, incrementally
D) both formats of data change at the same rate

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Question 53

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For the following entity-relationship diagram, the attributes you would NOT expect to see in the Computer entity are

Explicit knowledge has which of the following characteristics?

Data dictionaries perform all of the following functions except:

You would be an instance of your university's STUDENT class.

Place the following members of the data hierarchy in their correct order:

Describe the six steps of the knowledge management system cycle. Section reference 1: Knowledge Management

In a jewelry store, a customer places an order for a piece of jewelry (for example, a silver pin in the shape of a tulip) . A customer could order more than one piece of jewelry at a time. Which of the following entity-relationship diagrams is true?

An entity is a person, place, thing, or event about which information is maintained.

Explain the six problems that can be minimized using the database approach. Section reference 1: The Database Approach

What are the three distinct characteristics that distinguish big data from traditional data?

_____ are fields in a record that have some identifying information but typically do not identify the record with complete accuracy.

Describe the various new sources for data, and provide an example of each. Section reference 1: Opening case

At your university, students can take more than one class, and each class can have more than one student. This is an example of what kind of relationship?

An organization's data warehouse generally maintains its operational data.

Structured query language is a relational database language that enables users to perform complicated searches with relatively simple statements.