Database - Database Design Using Normalization

Exercise :: Database Design Using Normalization - General Questions

6. 

When assessing the table structure of an acquired set of tables with data, determining foreign keys is (part of) the:

A. first step.
B. second step.
C. third step.
D. fourth step.

Answer: Option B

Explanation:

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7. 

Creating a read-only database is a task that is ________ assigned to beginning database professionals.

A. always
B. commonly
C. seldom
D. never

Answer: Option B

Explanation:

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8. 

Each answer below shows example data from a table. Which answer is an example of the general-purpose remarks column problem?

A. Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
B. Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
C. Three rows have the values Brown, NULL, and Blue in the same column.
D. One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.

Answer: Option D

Explanation:

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9. 

For a number of reasons, normalizations is not often an advantage for a(n) ________ database.

A. read-only
B. updateable
C. either a read-only or an updateable
D. None of the above is correct.

Answer: Option A

Explanation:

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10. 

Most of the time, modification anomalies are serious enough that tables should be normalized into:

A. 1NF.
B. 2NF.
C. 3NF.
D. BCNF.

Answer: Option D

Explanation:

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