Database Design Using Normalization - General Questions (2)

9.

vWhen assessing the table structure of an acquired set of tables with data, determining functional dependencies is (part of) the:

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

Answer: Option B

Explanation:

vNo answer description available for this question. Let us discuss.

10.

Each answer below shows example data from a table. Which answer is an example of the missing values 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 C

Explanation:

No answer description available for this question. Let us discuss.

11.

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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12.

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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13.

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:

No answer description available for this question. Let us discuss.

14.

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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15.

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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16.

Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems?

A.	The multivalue, multicolumn problem
B.	The inconsistent values problem
C.	The missing values problem
D.	The general-purpose remarks column problem

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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