Database - Data Models into Database Designs

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Exercise :: Data Models into Database Designs - General Questions

1. 

Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values?

A. A domain constraint
B. A range constraint
C. An intrarelation constraint
D. An interrelation constraint

Answer: Option A

Explanation:

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

2. 

In a 1:N relationship, the foreign key is placed in:

A. either table without specifying parent and child tables.
B. the parent table.
C. the child table.
D. either the parent table or the child table.

Answer: Option C

Explanation:

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

3. 

Which of the following column properties specifies whether or not cells in a column must contain a data value?

A. Null status
B. Data type
C. Default value
D. Data constraints

Answer: Option A

Explanation:

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

4. 

A primary key should be defined as:

A. NULL.
B. NOT NULL.
C. Either of the above can be used.
D. None of the above are correct.

Answer: Option B

Explanation:

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

5. 

Which of the following column properties would be used to specify that cells in a column must contain a monetary value?

A. Null status
B. Data type
C. Default value
D. Data constraints

Answer: Option B

Explanation:

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